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Grand Canyon University Randomly Selected Records Worksheet
Complete the following exercises from "Review Questions" located at the end of each chapter and put them into a Word docum ...
Grand Canyon University Randomly Selected Records Worksheet
Complete the following exercises from "Review Questions" located at the end of each chapter and put them into a Word document to submit to the instructor.Chapter 19, numbers 19.9 and 19.16Chapter 20, numbers 20.5, 20.6, and 20.7Show all relevant work; use the equation editor in Microsoft Word when necessary.
3 pages
Analysis With Correlation And Regression
Fail to reject the null hypothesis and conclude that there is not sufficient evidence to support the claim of We can't use ...
Analysis With Correlation And Regression
Fail to reject the null hypothesis and conclude that there is not sufficient evidence to support the claim of We can't use the regression equation ...
Find the balance in an account if $3500 is invested at an annual rate of 3% for 10 years and compounded quarterly.
Find the balance in an account if $3500 is invested at an annual rate of 3% for 10 years and compounded quarterly. A. $4,7 ...
Find the balance in an account if $3500 is invested at an annual rate of 3% for 10 years and compounded quarterly.
Find the balance in an account if $3500 is invested at an annual rate of 3% for 10 years and compounded quarterly. A. $4,722.74 B. $3,526.25 C. $4,719.22 D. $3,771.54
California Baptist University Law of Sines and Cosines Problems
Law of Sines and Cosines ProblemSolve for α in the oblique triangle ABC; AB = 30; AC = 15 and angle B = 20°Oblique trian ...
California Baptist University Law of Sines and Cosines Problems
Law of Sines and Cosines ProblemSolve for α in the oblique triangle ABC; AB = 30; AC = 15 and angle B = 20°Oblique triangle ABC; AB = 30; AC = 15 and angle B = 20° Type out the two equations substituting the numbers from the diagram. Type out the Law of Sines set of relationships and type out the most appropriate version to use the Law of Cosines for this solution. Solve for a using both methods (show step by step work)
9 Statistics questions
The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gatewa ...
9 Statistics questions
The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airports. The maximum possible rating is 10. Suppose a simple random sample of 50 business travelers is selected and each traveler is asked to provide a rating for the Miami International Airport. The ratings obtained from the sample of 50 business travelers follow.378910101099998567798109876879539101099898610847310898101088Develop a 95% confidence interval estimate of the population mean rating for Miami. Round your answers to two decimal places. Enter your answer using parentheses and a comma, in the form (n1,n2). Do not use commas in your numerical answer (i.e. use 1200 instead of 1,200, etc.)Suppose a random sample of size 53 is selected from a population with σ = 9. Find the value of the standard error of the mean in each of the following cases (use the finite population correction factor if appropriate).
a. The population size is infinite (to 2 decimals).b. The population size is N = 50,000 (to 2 decimals).c. The population size is N = 5000 (to 2 decimals).d. The population size is N = 500 (to 2 decimals).The budgeting process for a midwestern college resulted in expense forecasts for the coming year (in $ millions) of $9, $10, $11, $12, and $13. Because the actual expenses are unknown, the following respective probabilities are assigned: 0.28, 0.2, 0.2, 0.13, and 0.19.
Show the probability distribution for the expense forecast.
xf(x)910111213What is the expected value of the expense forecast for the coming year (to 2 decimals)? What is the variance of the expense forecast for the coming year (to 2 decimals)? If income projections for the year are estimated at $12 million, how much profit does the college expect to make (report your answer in millions of dollars, to 2 decimals)?A simple random sample of 700 individuals provides 100 Yes responses.a. What is the point estimate of the proportion of the population that would provide Yes responses (to 2 decimals)? b. What is your estimate of the standard error of the proportion (to 4 decimals)? c. Compute the 95% confidence interval for the population proportion (to 4 decimals).( , )America's young people are heavy Internet users; 87% of Americans ages 12 to 17 are Internet users (The Cincinnati Enquirer, February 7, 2006). MySpace was voted the most popular website by 9% in a sample survey of Internet users in this age group. Suppose 1,600 youths participated in the survey. What is the margin of error, and what is the interval estimate of the population proportion for which MySpace is the most popular website? Use a 95% confidence level and round your answers to 3 decimals. For interval estimate Enter your answer using parentheses and a comma, in the form (n1,n2). Do not use commas in your numerical answer (i.e. use 1200 instead of 1,200, etc.)Margin error =Interval estimate =A sociologist was hired by a large city hospital to investigate the relationship between the number of unauthorized days that employees are absent per year and the distance (miles) between home and work for the employees. A sample of 10 employees was chosen, and the following data were collected.Distance to WorkNumber of Days Absent1734476685102125141144181Which of the following scatter diagrams accurately represents these data?Scatter Diagram #1 Scatter Diagram #2 Scatter Diagram #3 - Select your answer -Scatter diagram #1Scatter diagram #2Scatter diagram #3Item 1Consider the following three scatter diagrams of the residuals against the independent variable. Which of the following accurately represents the data?Scatter Diagram #1 Scatter Diagram #2Scatter Diagram #3 - Select your answer -Scatter diagram #1Scatter diagram #2Scatter diagram #3Item 2 Develop the least squares estimated regression equation (to 3 decimals).Days Absent = + DistanceIs there a significant relationship between the two variables? Use = .05.Compute the value of the F test statistic (to 2 decimals). The p-value is - Select your answer -less than .01between .01 and .025between .025 and .05between .05 and .10greater than .10Item 6 What is your conclusion?- Select your answer -Conclude that there is a significant relationship between days missed and distance from workDo not conclude that there is a significant relationship between days missed and distance from workItem 7 What is the value of r2 (to 3 decimals)? Note: report r2 between 0 and 1. Did the estimated regression equation provide a good fit?- Select your answer -Yes, it provided an exceptionally good fitYes, it provided a reasonably good fitNo, it did not provide an acceptable fitItem 9 Use the estimated regression equation developed in part (c) to develop a 95% confidence interval for the expected number of days absent for employees living 5 miles from the company (to 1 decimal).( , )When a new machine is functioning properly, only 7% of the items produced are defective. Assume that we will randomly select two parts produced on the machine and that we are interested in the number of defective parts found.a. Using the Figure 5.3, select a tree diagram that shows this problem as a two-trial experiment. Here D: defective; G: not defective.1. 2. 3. 4. Choose the Correct option from the above tree diagrams:Select1234Item 1b. How many experimental outcomes result in exactly one defect being found?c. Compute the probabilities associated with finding no defects, exactly one defect, and two defects (to 4 decimals).P (no defects)P (1 defect)P (2 defects)Consider the following hypothesis test:H0: μ ≤ 50Ha: μ > 50A sample of 60 is used and the population standard deviation is 6. Use the critical value approach to state your conclusion for each of the following sample results. Use α = .05. a. With x = 52.5, what is the value of the test statistic (to 2 decimals)? Can it be concluded that the population mean is greater than 50?- Select your answer -YesNoItem 2b. With x = 51, what is the value of the test statistic (to 2 decimals)? Can it be concluded that the population mean is greater than 50?- Select your answer -YesNoItem 4c. With x = 51.8, what is the value of the test statistic (to 2 decimals)? Can it be concluded that the population mean is greater than 50?- Select your answer -YesNoItem 6In San Francisco, 30% of workers take public transportation daily (USA Today, December 21, 2005). In a sample of 7 workers, what is the probability that exactly three workers take public transportation daily (to 4 decimals including interim calculations)? In a sample of 7 workers, what is the probability that at least three workers take public transportation daily (to 4 decimals including interim calculations)?The following data on price ($) and the overall score for 6 stereo headphones that were tested by Consumer Reports were as follows.BrandPriceScoreBose18077Scullcandy16072Koss9567Phillips/O'Neill7058Denon7040JVC3527a. Does the t test indicate a significant relationship between price and the overall score? The test t-Conclusion at α = .05t = (to 2 decimal places.)p-value is - Select your answer -less than .02between .02 and .05between .05 and .1between .1 and .2greater than .2Item 2What is your conclusion? Use α = .05.- Select your answer -There is a significant relationship between price and overall scoreThere is no significant relationship between price and overall scoreItem 3 .b. Test for a significant relationship using the F test. p-value is - Select your answer -less than .01between .01 and .025between .025 and .05between .05 and .1greater than .1Item 4What is your conclusion? Use α = .05.Because p-value is - Select your answer -greater than or equal toless than or equal toequal toItem 5 .05, we - Select your answer -acceptrejectItem 6 H0: β1 is - Select your answer -greater than or equal to zeroless than or equal to zeroequal to zeroItem 7 .c. Show the ANOVA table for these data. Round your answers to three decimal places, if necessary.Source of VariationSum of SquaresDegrees of FreedomMean SquareFp-valueRegression- Select your answer -less than .01between .01 and .025between .025 and .05between .05 and .1greater than .1Item 12ErrorTotal40 mins ago
Business analytics
GB513-1: Illustrate business situations through graphs and tables.
This Assignment requires you to use Excel to answer th ...
Business analytics
GB513-1: Illustrate business situations through graphs and tables.
This Assignment requires you to use Excel to answer the questions and create the charts as specified
in the file below. However, when presenting reports in business, you will find that most managers will
prefer to read Word documents or PowerPoint slides rather than go through Excel sheets. Being able
to move your work from Excel to Word is a valuable skill. For this Assignment, prepare a report by
copying all your charts and comments to a Word document and submit that Word file as your
Assignment. Clearly label all questions and charts as well as your answers. Make sure to review your
grading Rubric.
Using Data Analysis in Excel
Before any data analysis can be performed using Excel, the Data Analysis Tool must first be installed
on your computer. This will help you to successfully follow this tutorial.
Once the tool is installed, you can input data to create descriptive statistics. Follow the steps in the
video tutorial and try to get the correct result.
Question 1
According to T-100 Domestic Market, the top seven airlines in the United States by domestic
boarding in a recent year were Southwest Airlines Co. with 81.1 million, Delta Air Lines Inc. with 79.4
million, American Airlines, Inc. with 72.6 million, United Airlines, Inc. with 56.3 million, Northwest
Airlines Corp. with 43.3 million, US Airways with 37.8 million, and Continental Airlines with 31.5
million. Using Excel, construct a pie chart and a bar graph to depict this information.
Question 2
The U.S. Department of the Interior releases figures on mineral production. The following are the 15
leading states in nonfuel mineral production in the United States in 2008.
State Value ($billions)
Arizona 8.95
Nevada 6.48
Florida 4.2
Utah 4.17
California 4
Texas 3.8
Minnesota 3.72
Alaska 2.98
Missouri 2.58
Colorado 2.45
GB513: Business Analytics
2 of 3
Michigan 2.96
Wyoming 2.37
Georgia 2.05
New Mexico 1.81
Pennsylvania 1.68
a) Using the appropriate tool in the data analysis toolpak in Excel, calculate the descriptive
statistics. Include the summary statistics table in your report.
b) Briefly define the meaning of each of the metrics in the summary report you get.
c) Comment on all of the figures in the report. What do you learn from these metrics? What are
they telling you about this data set? Is it symmetrical, flat, or skewed? Does it have outliers?
Question 3
Suppose Procter & Gamble sells 20 million bars of soap per week, but the demand is not constant
and production management would like to get a better handle on how sales are distributed over the
year. Let the following sales figures given in units of million bars represent the sales of bars per week
over 1-year (in no particular order).
a) Construct a histogram chart to represent the data using the appropriate tool from the data
analysis tool pack. Make sure to specify your own bin ranges otherwise Excel will automatically
pick them for you and you will have very strange bin ranges with confusing decimal points.
Make a list of numbers in multiples of 5, starting from 10 up to 40; then, show where the bin
numbers are in the histogram dialog box.
b) Creating a chart is not useful in and of itself unless it is properly interpreted. Write a brief
analysis of the graph. What do you see in the graph that might be helpful to the production and
sales people?
17.1 14.3 17 25.2
14.4 12.2 11.9 26.3
15.4 10.9 12.8 13.5
17.4 21.5 39.8 30.6
15 20.4 20.7 25.2
13.8 20.3 21.3 26.2
20.6 13.8 22.5 26.9
18.4 23.6 21.4 32.8
20 19.1 23.4 26.3
20.9 20.4 23.1 26.6
11.1 15.4 14.8 24.3
12.5 20.3 21.4 26.2
14.7 24.4 24 23.8
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Most Popular Content
Grand Canyon University Randomly Selected Records Worksheet
Complete the following exercises from "Review Questions" located at the end of each chapter and put them into a Word docum ...
Grand Canyon University Randomly Selected Records Worksheet
Complete the following exercises from "Review Questions" located at the end of each chapter and put them into a Word document to submit to the instructor.Chapter 19, numbers 19.9 and 19.16Chapter 20, numbers 20.5, 20.6, and 20.7Show all relevant work; use the equation editor in Microsoft Word when necessary.
3 pages
Analysis With Correlation And Regression
Fail to reject the null hypothesis and conclude that there is not sufficient evidence to support the claim of We can't use ...
Analysis With Correlation And Regression
Fail to reject the null hypothesis and conclude that there is not sufficient evidence to support the claim of We can't use the regression equation ...
Find the balance in an account if $3500 is invested at an annual rate of 3% for 10 years and compounded quarterly.
Find the balance in an account if $3500 is invested at an annual rate of 3% for 10 years and compounded quarterly. A. $4,7 ...
Find the balance in an account if $3500 is invested at an annual rate of 3% for 10 years and compounded quarterly.
Find the balance in an account if $3500 is invested at an annual rate of 3% for 10 years and compounded quarterly. A. $4,722.74 B. $3,526.25 C. $4,719.22 D. $3,771.54
California Baptist University Law of Sines and Cosines Problems
Law of Sines and Cosines ProblemSolve for α in the oblique triangle ABC; AB = 30; AC = 15 and angle B = 20°Oblique trian ...
California Baptist University Law of Sines and Cosines Problems
Law of Sines and Cosines ProblemSolve for α in the oblique triangle ABC; AB = 30; AC = 15 and angle B = 20°Oblique triangle ABC; AB = 30; AC = 15 and angle B = 20° Type out the two equations substituting the numbers from the diagram. Type out the Law of Sines set of relationships and type out the most appropriate version to use the Law of Cosines for this solution. Solve for a using both methods (show step by step work)
9 Statistics questions
The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gatewa ...
9 Statistics questions
The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airports. The maximum possible rating is 10. Suppose a simple random sample of 50 business travelers is selected and each traveler is asked to provide a rating for the Miami International Airport. The ratings obtained from the sample of 50 business travelers follow.378910101099998567798109876879539101099898610847310898101088Develop a 95% confidence interval estimate of the population mean rating for Miami. Round your answers to two decimal places. Enter your answer using parentheses and a comma, in the form (n1,n2). Do not use commas in your numerical answer (i.e. use 1200 instead of 1,200, etc.)Suppose a random sample of size 53 is selected from a population with σ = 9. Find the value of the standard error of the mean in each of the following cases (use the finite population correction factor if appropriate).
a. The population size is infinite (to 2 decimals).b. The population size is N = 50,000 (to 2 decimals).c. The population size is N = 5000 (to 2 decimals).d. The population size is N = 500 (to 2 decimals).The budgeting process for a midwestern college resulted in expense forecasts for the coming year (in $ millions) of $9, $10, $11, $12, and $13. Because the actual expenses are unknown, the following respective probabilities are assigned: 0.28, 0.2, 0.2, 0.13, and 0.19.
Show the probability distribution for the expense forecast.
xf(x)910111213What is the expected value of the expense forecast for the coming year (to 2 decimals)? What is the variance of the expense forecast for the coming year (to 2 decimals)? If income projections for the year are estimated at $12 million, how much profit does the college expect to make (report your answer in millions of dollars, to 2 decimals)?A simple random sample of 700 individuals provides 100 Yes responses.a. What is the point estimate of the proportion of the population that would provide Yes responses (to 2 decimals)? b. What is your estimate of the standard error of the proportion (to 4 decimals)? c. Compute the 95% confidence interval for the population proportion (to 4 decimals).( , )America's young people are heavy Internet users; 87% of Americans ages 12 to 17 are Internet users (The Cincinnati Enquirer, February 7, 2006). MySpace was voted the most popular website by 9% in a sample survey of Internet users in this age group. Suppose 1,600 youths participated in the survey. What is the margin of error, and what is the interval estimate of the population proportion for which MySpace is the most popular website? Use a 95% confidence level and round your answers to 3 decimals. For interval estimate Enter your answer using parentheses and a comma, in the form (n1,n2). Do not use commas in your numerical answer (i.e. use 1200 instead of 1,200, etc.)Margin error =Interval estimate =A sociologist was hired by a large city hospital to investigate the relationship between the number of unauthorized days that employees are absent per year and the distance (miles) between home and work for the employees. A sample of 10 employees was chosen, and the following data were collected.Distance to WorkNumber of Days Absent1734476685102125141144181Which of the following scatter diagrams accurately represents these data?Scatter Diagram #1 Scatter Diagram #2 Scatter Diagram #3 - Select your answer -Scatter diagram #1Scatter diagram #2Scatter diagram #3Item 1Consider the following three scatter diagrams of the residuals against the independent variable. Which of the following accurately represents the data?Scatter Diagram #1 Scatter Diagram #2Scatter Diagram #3 - Select your answer -Scatter diagram #1Scatter diagram #2Scatter diagram #3Item 2 Develop the least squares estimated regression equation (to 3 decimals).Days Absent = + DistanceIs there a significant relationship between the two variables? Use = .05.Compute the value of the F test statistic (to 2 decimals). The p-value is - Select your answer -less than .01between .01 and .025between .025 and .05between .05 and .10greater than .10Item 6 What is your conclusion?- Select your answer -Conclude that there is a significant relationship between days missed and distance from workDo not conclude that there is a significant relationship between days missed and distance from workItem 7 What is the value of r2 (to 3 decimals)? Note: report r2 between 0 and 1. Did the estimated regression equation provide a good fit?- Select your answer -Yes, it provided an exceptionally good fitYes, it provided a reasonably good fitNo, it did not provide an acceptable fitItem 9 Use the estimated regression equation developed in part (c) to develop a 95% confidence interval for the expected number of days absent for employees living 5 miles from the company (to 1 decimal).( , )When a new machine is functioning properly, only 7% of the items produced are defective. Assume that we will randomly select two parts produced on the machine and that we are interested in the number of defective parts found.a. Using the Figure 5.3, select a tree diagram that shows this problem as a two-trial experiment. Here D: defective; G: not defective.1. 2. 3. 4. Choose the Correct option from the above tree diagrams:Select1234Item 1b. How many experimental outcomes result in exactly one defect being found?c. Compute the probabilities associated with finding no defects, exactly one defect, and two defects (to 4 decimals).P (no defects)P (1 defect)P (2 defects)Consider the following hypothesis test:H0: μ ≤ 50Ha: μ > 50A sample of 60 is used and the population standard deviation is 6. Use the critical value approach to state your conclusion for each of the following sample results. Use α = .05. a. With x = 52.5, what is the value of the test statistic (to 2 decimals)? Can it be concluded that the population mean is greater than 50?- Select your answer -YesNoItem 2b. With x = 51, what is the value of the test statistic (to 2 decimals)? Can it be concluded that the population mean is greater than 50?- Select your answer -YesNoItem 4c. With x = 51.8, what is the value of the test statistic (to 2 decimals)? Can it be concluded that the population mean is greater than 50?- Select your answer -YesNoItem 6In San Francisco, 30% of workers take public transportation daily (USA Today, December 21, 2005). In a sample of 7 workers, what is the probability that exactly three workers take public transportation daily (to 4 decimals including interim calculations)? In a sample of 7 workers, what is the probability that at least three workers take public transportation daily (to 4 decimals including interim calculations)?The following data on price ($) and the overall score for 6 stereo headphones that were tested by Consumer Reports were as follows.BrandPriceScoreBose18077Scullcandy16072Koss9567Phillips/O'Neill7058Denon7040JVC3527a. Does the t test indicate a significant relationship between price and the overall score? The test t-Conclusion at α = .05t = (to 2 decimal places.)p-value is - Select your answer -less than .02between .02 and .05between .05 and .1between .1 and .2greater than .2Item 2What is your conclusion? Use α = .05.- Select your answer -There is a significant relationship between price and overall scoreThere is no significant relationship between price and overall scoreItem 3 .b. Test for a significant relationship using the F test. p-value is - Select your answer -less than .01between .01 and .025between .025 and .05between .05 and .1greater than .1Item 4What is your conclusion? Use α = .05.Because p-value is - Select your answer -greater than or equal toless than or equal toequal toItem 5 .05, we - Select your answer -acceptrejectItem 6 H0: β1 is - Select your answer -greater than or equal to zeroless than or equal to zeroequal to zeroItem 7 .c. Show the ANOVA table for these data. Round your answers to three decimal places, if necessary.Source of VariationSum of SquaresDegrees of FreedomMean SquareFp-valueRegression- Select your answer -less than .01between .01 and .025between .025 and .05between .05 and .1greater than .1Item 12ErrorTotal40 mins ago
Business analytics
GB513-1: Illustrate business situations through graphs and tables.
This Assignment requires you to use Excel to answer th ...
Business analytics
GB513-1: Illustrate business situations through graphs and tables.
This Assignment requires you to use Excel to answer the questions and create the charts as specified
in the file below. However, when presenting reports in business, you will find that most managers will
prefer to read Word documents or PowerPoint slides rather than go through Excel sheets. Being able
to move your work from Excel to Word is a valuable skill. For this Assignment, prepare a report by
copying all your charts and comments to a Word document and submit that Word file as your
Assignment. Clearly label all questions and charts as well as your answers. Make sure to review your
grading Rubric.
Using Data Analysis in Excel
Before any data analysis can be performed using Excel, the Data Analysis Tool must first be installed
on your computer. This will help you to successfully follow this tutorial.
Once the tool is installed, you can input data to create descriptive statistics. Follow the steps in the
video tutorial and try to get the correct result.
Question 1
According to T-100 Domestic Market, the top seven airlines in the United States by domestic
boarding in a recent year were Southwest Airlines Co. with 81.1 million, Delta Air Lines Inc. with 79.4
million, American Airlines, Inc. with 72.6 million, United Airlines, Inc. with 56.3 million, Northwest
Airlines Corp. with 43.3 million, US Airways with 37.8 million, and Continental Airlines with 31.5
million. Using Excel, construct a pie chart and a bar graph to depict this information.
Question 2
The U.S. Department of the Interior releases figures on mineral production. The following are the 15
leading states in nonfuel mineral production in the United States in 2008.
State Value ($billions)
Arizona 8.95
Nevada 6.48
Florida 4.2
Utah 4.17
California 4
Texas 3.8
Minnesota 3.72
Alaska 2.98
Missouri 2.58
Colorado 2.45
GB513: Business Analytics
2 of 3
Michigan 2.96
Wyoming 2.37
Georgia 2.05
New Mexico 1.81
Pennsylvania 1.68
a) Using the appropriate tool in the data analysis toolpak in Excel, calculate the descriptive
statistics. Include the summary statistics table in your report.
b) Briefly define the meaning of each of the metrics in the summary report you get.
c) Comment on all of the figures in the report. What do you learn from these metrics? What are
they telling you about this data set? Is it symmetrical, flat, or skewed? Does it have outliers?
Question 3
Suppose Procter & Gamble sells 20 million bars of soap per week, but the demand is not constant
and production management would like to get a better handle on how sales are distributed over the
year. Let the following sales figures given in units of million bars represent the sales of bars per week
over 1-year (in no particular order).
a) Construct a histogram chart to represent the data using the appropriate tool from the data
analysis tool pack. Make sure to specify your own bin ranges otherwise Excel will automatically
pick them for you and you will have very strange bin ranges with confusing decimal points.
Make a list of numbers in multiples of 5, starting from 10 up to 40; then, show where the bin
numbers are in the histogram dialog box.
b) Creating a chart is not useful in and of itself unless it is properly interpreted. Write a brief
analysis of the graph. What do you see in the graph that might be helpful to the production and
sales people?
17.1 14.3 17 25.2
14.4 12.2 11.9 26.3
15.4 10.9 12.8 13.5
17.4 21.5 39.8 30.6
15 20.4 20.7 25.2
13.8 20.3 21.3 26.2
20.6 13.8 22.5 26.9
18.4 23.6 21.4 32.8
20 19.1 23.4 26.3
20.9 20.4 23.1 26.6
11.1 15.4 14.8 24.3
12.5 20.3 21.4 26.2
14.7 24.4 24 23.8
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