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Hi! Can you please help me work out this question step by step? I dont get how you solve this. Thanks!
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The equation is 2 (x+3) (x+1) = 2 (x^2 + 4x+ 3 )
= 2x^2 + 8x+ 6
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Edr 8201 Week 6 Assignment 1
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Edr 8201 Week 6 Assignment 1
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Central Tendency and Variability
Follow these steps:Download the Measures of Central Tendency and Variability document (PDF). (I attached it) Create a new ...
Central Tendency and Variability
Follow these steps:Download the Measures of Central Tendency and Variability document (PDF). (I attached it) Create a new document that contains your solutions to the problems.Save the document with a descriptive file name that includes your last name and first initial (example: SmithJ_measures.doc).Youll need access to my statcruch account you can use the following to complete it...Link: statcrunch.comUser: thakorjPassword: Jayr5214 (Capital J) Supplemental StatCrunch Tutorial VideosThe following videos on Measures of Central Tendency will be useful in finishing this activity:Calculating Summary Statistics in StatCrunch (4:23 YouTube) (Links to an external site.)Links to an external site.3_2_2_standard_deviation_StatCrunch.mov (3:00 YouTube) (Links to an external site.)Links to an external site.
The present annual operating budget for a company is $4,876,351
1. The present annual operating budget for a company is $4,876,351. Next year an increase is expected of anywhere from 4% ...
The present annual operating budget for a company is $4,876,351
1. The present annual operating budget for a company is $4,876,351. Next year an increase is expected of anywhere from 4% to 7%.The company anticipates opening new stores, anywhere from 5 to 10 new stores. Each new store will add an additional $329,500 to the budget.Create a spreadsheet for next year's operating budget reflecting the percentage increase (in 0.5% increments) and the addition of the new stores.2. A sample of guests at 4 hotels was taken to see which factors were important in deciding whether or not to return to the hotel: Hotel Palm Leaf Beach Bums Sun n Sand Sea n SurfReason for not ReturningPrice 24 8 38 10Location 37 14 7 20Service 15 6 14 9Accomodation 14 9 7 11Give the expected frequenciesGive the calculated Chi SquareGive the critical Chi SquareIs the reason for not returning independent of hotel (yes or no) Must answer yes or no for independence.Which hotels are under represented in the data for price? (The guests find price to be less important than you would expect.)3. Use 1 way ANOVA for this problem. Work the formulas by writing them into Excel. You may use the Analysis Tool-Pak in Excel ONLY to check your results.ALL WORK MUST BE SHOWN TO RECEIVE CREDIT FOR THIS PROBLEM.Null Hypothesis: No significant difference in gas mileage (shown in miles per gallon) in the 4 gasolines:Exxon Sunoco Hess Shell30 29 29 3225 26 34 2627 29 32 3126 28 33 27Give your calculations for SSAGive your calculations for SSWGive your ANOVA tableGive the calculated FGive the critical FIs the difference significant in the gasolines? (yes or no)Use the Tukey multiple comparisons test to tell which pairs of means show a significant difference:Give the critical range, giving the value for Q, etc.Show the difference between each pair of means.Which pair show a significant difference? Answer the question in terms of the gasolines?Which gasoline would you use for best mileage?4. The data below represent customer satisfaction on a scale of 1 to 10 for different roasts of coffee (Columbian espresso, French mocha, Brazilian, Italian espresso) made in different types of coffee makers (electric, drip, French press).Coffee maker Co. Esp. Fr. Mocha Brazilian It. Esp Electric 7.6 6.4 5.5 8.5 6.8 7.4 6.5 5.7 7.1 7.6 6.8 9.2Drip 8.8 9.9 7.8 8.8 9.6 9.3 7.9 8.3 8.9 8.5 8.2 8.3French Press 9.8 8.9 9.7 8.3 9.7 9.1 9.5 8.7 9.9 8.8 8.6 8.9a) Using 2 way ANOVA give the calculated F for customer satisfaction for: (please answer in order in receive credit). Also be clear which part you are answering in a), b), c) to receive credit.i) The different roastsii) The different coffee makersiii) The Interaction effectb) Does it appear that liking the specific roast is affected by the type of coffee maker (interaction effect). Please answer yes or no.Why? Give a reason for your answer.c) Is the difference significant among the roasts of coffee? Please answer yes or no.Why? Give a reason for your answer.d) Is the difference significant among the types of coffee makers? Please answer yes or no.Why? Give a reason for your answer.e) Use the Tukey multiple comparisons test to show which pairs of roasts or coffee makers show a significant difference. State whether you are using Factor A or Factor B and why. Give the calculations for the Critical Range (give the value of Q, MSE, c, r, n') and show each pair of means that you are comparing. Make a statement about which pairs (in words) show a significant difference.) f) Sketch the cell means plot.g) Make one statement concerning what your graph shows (something like customers prefer electric coffee makers, etc.)
RSCH 8210 Walden Week 2 Quantitative Analysis Displaying Data Results Discussion
Introduction to Quantitative Analysis: Visually Displaying Data ResultsReview this week’s Learning Resources and conside ...
RSCH 8210 Walden Week 2 Quantitative Analysis Displaying Data Results Discussion
Introduction to Quantitative Analysis: Visually Displaying Data ResultsReview this week’s Learning Resources and consider visual displays of data.For additional support, review Levels of Measurement Using the SPSS software, open the Afrobarometer dataset or the High School Longitudinal Study dataset (whichever you choose) found in this week’s Learning Resources.From the dataset you chose, choose one categorical and one continuous variable and perform the appropriate visual display for each variable.Once you visually display each variable, review Chapter 11 of the Wagner text to understand how to copy and paste your output into your Word document.For this Assignment:Write a 2- to 3-paragraph analysis of your results and include a copy and paste of the appropriate visual display of the data into your document.Please include the following Headings and Subheading in APA 7 writing style.1. Introduction2. The implications for Social Change based on the Results3. Early in your Assignment, when you relate which dataset you analyzed, please include the mean of the following variables. If you are using the Afrobarometer Dataset, report the mean of Q1 (Age). If you are using the HS Long Survey Dataset, report the mean of X1SES.ConclusionReferencesUse appropriate APA format. Refer to the APA manual for appropriate citation.
Standard Deviation Statistics Questions
1) Find the critical value zc that corresponds to a 95% confidence level.
2) Construct and Interpret Confidence Intervals ...
Standard Deviation Statistics Questions
1) Find the critical value zc that corresponds to a 95% confidence level.
2) Construct and Interpret Confidence Intervals for the Population Mean:
A random sample of 40 students has a test score with x = 81.5 and s = 10.2. Construct the confidence
interval for the population mean, μ if c = 0.90.
3) The standard IQ test has a mean of 101 and a standard deviation of 16. We want to be 98% certain
that we are within 4 IQ points of the true mean. Determine the required sample size.
4) In order to efficiently bid on a contract, a contractor wants to be 95% confident that his error is less
than two hours in estimating the average time it takes to install tile flooring. Previous contracts indicate
that the standard deviation is 4.5 hours. How large a sample must be selected? 5) Find the critical value, tc for c = 0.99 and n = 10. 6) When 435 college students were surveyed,120 said they own their car. Find a point estimate for p,
the population proportion of students who own their cars.
7) A survey of 400 non-fatal accidents showed that 189 involved the use of a cell phone. Find a point
estimate for p, the population proportion of non-fatal accidents that involved the use of a cell phone. 8) A survey of 250 homeless persons showed that 17 were veterans. Find a point estimate p, for the
population proportion of homeless persons who are veterans. 9) Construct a 95% confidence interval for the population standard deviation σ of a random sample of
15 men who have a mean weight of 165.2 pounds with a standard deviation of 13.5 pounds. Assume the
population is normally distributed.
10) A student randomly selects 10 CDs at a store. The mean is $13.75 with a standard deviation of $1.50.
Construct a 95% confidence interval for the population standard deviation, σ. 11) Determine the sampling error if the grade point averages for 10 randomly selected students from a
class of 125 students has a mean of x = 1.8. Assume the grade point average of the 125 students has a
mean of μ = 2.4. 12) A random sample of 120 students has a test score average with a standard deviation of 9.2. Find the
margin of error if c = 0.98
2 pages
Theorem : Suppose x and y are distinct integers. Then (x+1)^2=(y+1)^2. If and only if x + y = - 2
Theorem : Suppose x and y are distinct integers. Then (x+1)^2=(y+1)^2. If and only if x + y = - 2 ...
Theorem : Suppose x and y are distinct integers. Then (x+1)^2=(y+1)^2. If and only if x + y = - 2
Theorem : Suppose x and y are distinct integers. Then (x+1)^2=(y+1)^2. If and only if x + y = - 2
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10 pages
Edr 8201 Week 6 Assignment 1
Imagine a researcher is interested in examining the relationship of selfesteem (Self_Estm) and productivity (Prod). The re ...
Edr 8201 Week 6 Assignment 1
Imagine a researcher is interested in examining the relationship of selfesteem (Self_Estm) and productivity (Prod). The researcher is also
Central Tendency and Variability
Follow these steps:Download the Measures of Central Tendency and Variability document (PDF). (I attached it) Create a new ...
Central Tendency and Variability
Follow these steps:Download the Measures of Central Tendency and Variability document (PDF). (I attached it) Create a new document that contains your solutions to the problems.Save the document with a descriptive file name that includes your last name and first initial (example: SmithJ_measures.doc).Youll need access to my statcruch account you can use the following to complete it...Link: statcrunch.comUser: thakorjPassword: Jayr5214 (Capital J) Supplemental StatCrunch Tutorial VideosThe following videos on Measures of Central Tendency will be useful in finishing this activity:Calculating Summary Statistics in StatCrunch (4:23 YouTube) (Links to an external site.)Links to an external site.3_2_2_standard_deviation_StatCrunch.mov (3:00 YouTube) (Links to an external site.)Links to an external site.
The present annual operating budget for a company is $4,876,351
1. The present annual operating budget for a company is $4,876,351. Next year an increase is expected of anywhere from 4% ...
The present annual operating budget for a company is $4,876,351
1. The present annual operating budget for a company is $4,876,351. Next year an increase is expected of anywhere from 4% to 7%.The company anticipates opening new stores, anywhere from 5 to 10 new stores. Each new store will add an additional $329,500 to the budget.Create a spreadsheet for next year's operating budget reflecting the percentage increase (in 0.5% increments) and the addition of the new stores.2. A sample of guests at 4 hotels was taken to see which factors were important in deciding whether or not to return to the hotel: Hotel Palm Leaf Beach Bums Sun n Sand Sea n SurfReason for not ReturningPrice 24 8 38 10Location 37 14 7 20Service 15 6 14 9Accomodation 14 9 7 11Give the expected frequenciesGive the calculated Chi SquareGive the critical Chi SquareIs the reason for not returning independent of hotel (yes or no) Must answer yes or no for independence.Which hotels are under represented in the data for price? (The guests find price to be less important than you would expect.)3. Use 1 way ANOVA for this problem. Work the formulas by writing them into Excel. You may use the Analysis Tool-Pak in Excel ONLY to check your results.ALL WORK MUST BE SHOWN TO RECEIVE CREDIT FOR THIS PROBLEM.Null Hypothesis: No significant difference in gas mileage (shown in miles per gallon) in the 4 gasolines:Exxon Sunoco Hess Shell30 29 29 3225 26 34 2627 29 32 3126 28 33 27Give your calculations for SSAGive your calculations for SSWGive your ANOVA tableGive the calculated FGive the critical FIs the difference significant in the gasolines? (yes or no)Use the Tukey multiple comparisons test to tell which pairs of means show a significant difference:Give the critical range, giving the value for Q, etc.Show the difference between each pair of means.Which pair show a significant difference? Answer the question in terms of the gasolines?Which gasoline would you use for best mileage?4. The data below represent customer satisfaction on a scale of 1 to 10 for different roasts of coffee (Columbian espresso, French mocha, Brazilian, Italian espresso) made in different types of coffee makers (electric, drip, French press).Coffee maker Co. Esp. Fr. Mocha Brazilian It. Esp Electric 7.6 6.4 5.5 8.5 6.8 7.4 6.5 5.7 7.1 7.6 6.8 9.2Drip 8.8 9.9 7.8 8.8 9.6 9.3 7.9 8.3 8.9 8.5 8.2 8.3French Press 9.8 8.9 9.7 8.3 9.7 9.1 9.5 8.7 9.9 8.8 8.6 8.9a) Using 2 way ANOVA give the calculated F for customer satisfaction for: (please answer in order in receive credit). Also be clear which part you are answering in a), b), c) to receive credit.i) The different roastsii) The different coffee makersiii) The Interaction effectb) Does it appear that liking the specific roast is affected by the type of coffee maker (interaction effect). Please answer yes or no.Why? Give a reason for your answer.c) Is the difference significant among the roasts of coffee? Please answer yes or no.Why? Give a reason for your answer.d) Is the difference significant among the types of coffee makers? Please answer yes or no.Why? Give a reason for your answer.e) Use the Tukey multiple comparisons test to show which pairs of roasts or coffee makers show a significant difference. State whether you are using Factor A or Factor B and why. Give the calculations for the Critical Range (give the value of Q, MSE, c, r, n') and show each pair of means that you are comparing. Make a statement about which pairs (in words) show a significant difference.) f) Sketch the cell means plot.g) Make one statement concerning what your graph shows (something like customers prefer electric coffee makers, etc.)
RSCH 8210 Walden Week 2 Quantitative Analysis Displaying Data Results Discussion
Introduction to Quantitative Analysis: Visually Displaying Data ResultsReview this week’s Learning Resources and conside ...
RSCH 8210 Walden Week 2 Quantitative Analysis Displaying Data Results Discussion
Introduction to Quantitative Analysis: Visually Displaying Data ResultsReview this week’s Learning Resources and consider visual displays of data.For additional support, review Levels of Measurement Using the SPSS software, open the Afrobarometer dataset or the High School Longitudinal Study dataset (whichever you choose) found in this week’s Learning Resources.From the dataset you chose, choose one categorical and one continuous variable and perform the appropriate visual display for each variable.Once you visually display each variable, review Chapter 11 of the Wagner text to understand how to copy and paste your output into your Word document.For this Assignment:Write a 2- to 3-paragraph analysis of your results and include a copy and paste of the appropriate visual display of the data into your document.Please include the following Headings and Subheading in APA 7 writing style.1. Introduction2. The implications for Social Change based on the Results3. Early in your Assignment, when you relate which dataset you analyzed, please include the mean of the following variables. If you are using the Afrobarometer Dataset, report the mean of Q1 (Age). If you are using the HS Long Survey Dataset, report the mean of X1SES.ConclusionReferencesUse appropriate APA format. Refer to the APA manual for appropriate citation.
Standard Deviation Statistics Questions
1) Find the critical value zc that corresponds to a 95% confidence level.
2) Construct and Interpret Confidence Intervals ...
Standard Deviation Statistics Questions
1) Find the critical value zc that corresponds to a 95% confidence level.
2) Construct and Interpret Confidence Intervals for the Population Mean:
A random sample of 40 students has a test score with x = 81.5 and s = 10.2. Construct the confidence
interval for the population mean, μ if c = 0.90.
3) The standard IQ test has a mean of 101 and a standard deviation of 16. We want to be 98% certain
that we are within 4 IQ points of the true mean. Determine the required sample size.
4) In order to efficiently bid on a contract, a contractor wants to be 95% confident that his error is less
than two hours in estimating the average time it takes to install tile flooring. Previous contracts indicate
that the standard deviation is 4.5 hours. How large a sample must be selected? 5) Find the critical value, tc for c = 0.99 and n = 10. 6) When 435 college students were surveyed,120 said they own their car. Find a point estimate for p,
the population proportion of students who own their cars.
7) A survey of 400 non-fatal accidents showed that 189 involved the use of a cell phone. Find a point
estimate for p, the population proportion of non-fatal accidents that involved the use of a cell phone. 8) A survey of 250 homeless persons showed that 17 were veterans. Find a point estimate p, for the
population proportion of homeless persons who are veterans. 9) Construct a 95% confidence interval for the population standard deviation σ of a random sample of
15 men who have a mean weight of 165.2 pounds with a standard deviation of 13.5 pounds. Assume the
population is normally distributed.
10) A student randomly selects 10 CDs at a store. The mean is $13.75 with a standard deviation of $1.50.
Construct a 95% confidence interval for the population standard deviation, σ. 11) Determine the sampling error if the grade point averages for 10 randomly selected students from a
class of 125 students has a mean of x = 1.8. Assume the grade point average of the 125 students has a
mean of μ = 2.4. 12) A random sample of 120 students has a test score average with a standard deviation of 9.2. Find the
margin of error if c = 0.98
2 pages
Theorem : Suppose x and y are distinct integers. Then (x+1)^2=(y+1)^2. If and only if x + y = - 2
Theorem : Suppose x and y are distinct integers. Then (x+1)^2=(y+1)^2. If and only if x + y = - 2 ...
Theorem : Suppose x and y are distinct integers. Then (x+1)^2=(y+1)^2. If and only if x + y = - 2
Theorem : Suppose x and y are distinct integers. Then (x+1)^2=(y+1)^2. If and only if x + y = - 2
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