please help and make sure all the answers and work is right
User Generated
whxruhyy
Mathematics
Description
User generated content is uploaded by users for the purposes of learning and should be used following Studypool's honor code & terms of service.
This question has not been answered.
Create a free account to get help with this and any other question!
24/7 Homework Help
Stuck on a homework question? Our verified tutors can answer all questions, from basic math to advanced rocket science!
Most Popular Content
4 Stat Questions (Using Excel)
1. A trucking company continuously monitors the tread remaining on its fleet of truck tires. The firm knows that standard ...
4 Stat Questions (Using Excel)
1. A trucking company continuously monitors the tread remaining on its fleet of truck tires. The firm knows that standard deviation is 0.1 cm. Suppose a sample of 80 tires were obtained, and the mean tread was 2.2 cm. Construct a 99% confidence interval. The company's operations manager knows that flat tires occur more often when the tread is below 1.0 cm. At what sample mean (and higher) should the company reasonably expect minimal flat tires, based on a 95% confidence interval?2. Monthly expenses for an advertising agency were obtained for the previous year. The sample of 12 expenses showed a mean of $196,000, with a standard deviation of $45,000. The office manager is budgeting for monthly expenses, and would like to know if it is reasonable to expect expenses to be below $250,000. Construct a 95% confidence interval to justify if $250,000 is reasonable.3. An online business consulting firm provides its service on a hourly basis. In the previous 15 months, the business had the following number of hours billed for its services.( Hours billed: 212 389 457 505 740 678 987 573 761 812 933 691 558 575 872)a. What is the point estimate of the population mean? b. Construct a 90% confidence interval.4. As the operator of an e-commerce web site, you are interested in monitoring the average time spent on the site. How large of a sample of usage times should be obtained, provided your allowable error is 30 seconds. Based on a long history, you know the standard deviation of usage times is 5 minutes. Assume a 90% level of confidence.
RES-845 Week 4 DQ 2 Consider Mary's experiment regarding whether learning of 6th graders, statistics homework help
Consider Mary's experiment regarding whether learning of 6th graders on a math lesson is affected by background noise leve ...
RES-845 Week 4 DQ 2 Consider Mary's experiment regarding whether learning of 6th graders, statistics homework help
Consider Mary's experiment regarding whether learning of 6th graders on a math lesson is affected by background noise level. Mary has collected her data. What is the null hypothesis for her study? What is the alternative hypothesis for her study? What are the assumptions that must be met about her data before she can correctly use an independent t-test to test the hypotheses? Why? How would she see if her data met these assumptions? How much room does she have to violate any of these assumptions and still get accurate results from the t-test? Explain and support your answers.Please respond to the above question using 250 words. Please also use at least 1 reference that is from a peer reviewed article or journal not a website reference. Please also cite the reference in APA 6th edition format. This is tid into the other assignment yu re completing for me (RES-845 Week 4 DQ 1)
ST 352 OSU What Is the Response Variable and What Is the Explanatory Variable Ques
I need step-by-step solutions for all the questions in the attached assignment.Thanks :)
ST 352 OSU What Is the Response Variable and What Is the Explanatory Variable Ques
I need step-by-step solutions for all the questions in the attached assignment.Thanks :)
Abraham Lincoln University Walmart Stocks Annual Rate of Return Discussion
It can be conjectured that the annual rate of return of a security and the market rate of return return are related by the ...
Abraham Lincoln University Walmart Stocks Annual Rate of Return Discussion
It can be conjectured that the annual rate of return of a security and the market rate of return return are related by the following regression modely = mx + b + εWhere y is the annual rate of return of the security, x is the annual rate of return of the market, b is the intercept, Ɛ is the normally distributed noise, andRate of return = (value at end of the year + received dividends during the year - value at the beginning of the year)/(initial value)Test this model by retrieving annual data on a security of your choice (Walmart). Choose a financial index such as S&P 500 as the indicator of the market, and retrieve the data. Use the most recent 20 years as the time span of the data. Perform regression analysis and make sure to include the hypothesis in your study. Provide your results and write your conclusions. Include all relevant information and conclusions, significances, the final regression model, coefficient of determination, graph of the regression line accompanied in the scatterplot, extent of residuals, and normality of residuals. Does the model seem to be valid according to your study? If so, is the influence positive or adverse? If you conclude influence, then your regression model indicates outperformance or underperformance of the market? Explain all your work in detail. Please use APA format and be sure to include in-text citations in your report
Statistic Assignment
It is a Statistic Assignment Using Technology to Produce Scatterplots and Regression Equations. All the information is dow ...
Statistic Assignment
It is a Statistic Assignment Using Technology to Produce Scatterplots and Regression Equations. All the information is down bellow in drop file. Thank you
Paine College One Sample T Rest SPSS Data Analysis Paper
This is the second of two sections for your Data Analysis Assignment. In this section, you will complete a one-sample t-te ...
Paine College One Sample T Rest SPSS Data Analysis Paper
This is the second of two sections for your Data Analysis Assignment. In this section, you will complete a one-sample t-test on new data and interpret the results. This Data Analysis Assignment focuses on the application of the One-Sample t-Test. While completing this assignment contemplate: What are some ways in which the one-sample t-test can be useful? Will this analysis play a role in your own research paper plan?
Review & ReflectIn this Data Analysis project, we will be examining the distribution of three common areas of academic study and comparing these to the known mean in the overall population. Fifty students in this class have taken three measures of academic success — Math, Reading, and Spelling. As the teacher you know that each test has been used nationally and know that the expected means for each test are:• Math –μ=55• Reading μ=62• Spelling μ=83
You want to know if your class is significantly different from the expected mean from the population. The data for your class of 50 students 1. State your null and alternative hypotheses.2. Is this a one or two-tailed hypotheses? Explain.3. Calculate the appropriate statistical test. (If you get stuck, refer back to the video from 2a or see the description in your book)• Be sure to include measures of central tendency and variability in your analysis/writeup.4. Can you reject the null hypothesis? Why or why not?5. Write a results section for your findings.• Include the descriptive statistics, type of statistical test, and results of the tests, with effect sizes and confidence intervals.
Similar Content
Describe two mutually exclusive events and two inclusive events, math homework help
OPEN ENDED Describe two mutually exclusive events and two inclusive even...
Bavarian Crystal Works Marginal Production Analysis Paper
Bavarian Crystal Works designs and produces lead crystal wine decanters for export to international markets. The productio...
University of Maryland Baltimore County Hypothesize a Straight Line Model Questions
When workers are not satisfied with their current wages, they often quit their jobs to seek or take a different job. To in...
Related Tags
Book Guides
Get 24/7
Homework help
Our tutors provide high quality explanations & answers.
Post question
Most Popular Content
4 Stat Questions (Using Excel)
1. A trucking company continuously monitors the tread remaining on its fleet of truck tires. The firm knows that standard ...
4 Stat Questions (Using Excel)
1. A trucking company continuously monitors the tread remaining on its fleet of truck tires. The firm knows that standard deviation is 0.1 cm. Suppose a sample of 80 tires were obtained, and the mean tread was 2.2 cm. Construct a 99% confidence interval. The company's operations manager knows that flat tires occur more often when the tread is below 1.0 cm. At what sample mean (and higher) should the company reasonably expect minimal flat tires, based on a 95% confidence interval?2. Monthly expenses for an advertising agency were obtained for the previous year. The sample of 12 expenses showed a mean of $196,000, with a standard deviation of $45,000. The office manager is budgeting for monthly expenses, and would like to know if it is reasonable to expect expenses to be below $250,000. Construct a 95% confidence interval to justify if $250,000 is reasonable.3. An online business consulting firm provides its service on a hourly basis. In the previous 15 months, the business had the following number of hours billed for its services.( Hours billed: 212 389 457 505 740 678 987 573 761 812 933 691 558 575 872)a. What is the point estimate of the population mean? b. Construct a 90% confidence interval.4. As the operator of an e-commerce web site, you are interested in monitoring the average time spent on the site. How large of a sample of usage times should be obtained, provided your allowable error is 30 seconds. Based on a long history, you know the standard deviation of usage times is 5 minutes. Assume a 90% level of confidence.
RES-845 Week 4 DQ 2 Consider Mary's experiment regarding whether learning of 6th graders, statistics homework help
Consider Mary's experiment regarding whether learning of 6th graders on a math lesson is affected by background noise leve ...
RES-845 Week 4 DQ 2 Consider Mary's experiment regarding whether learning of 6th graders, statistics homework help
Consider Mary's experiment regarding whether learning of 6th graders on a math lesson is affected by background noise level. Mary has collected her data. What is the null hypothesis for her study? What is the alternative hypothesis for her study? What are the assumptions that must be met about her data before she can correctly use an independent t-test to test the hypotheses? Why? How would she see if her data met these assumptions? How much room does she have to violate any of these assumptions and still get accurate results from the t-test? Explain and support your answers.Please respond to the above question using 250 words. Please also use at least 1 reference that is from a peer reviewed article or journal not a website reference. Please also cite the reference in APA 6th edition format. This is tid into the other assignment yu re completing for me (RES-845 Week 4 DQ 1)
ST 352 OSU What Is the Response Variable and What Is the Explanatory Variable Ques
I need step-by-step solutions for all the questions in the attached assignment.Thanks :)
ST 352 OSU What Is the Response Variable and What Is the Explanatory Variable Ques
I need step-by-step solutions for all the questions in the attached assignment.Thanks :)
Abraham Lincoln University Walmart Stocks Annual Rate of Return Discussion
It can be conjectured that the annual rate of return of a security and the market rate of return return are related by the ...
Abraham Lincoln University Walmart Stocks Annual Rate of Return Discussion
It can be conjectured that the annual rate of return of a security and the market rate of return return are related by the following regression modely = mx + b + εWhere y is the annual rate of return of the security, x is the annual rate of return of the market, b is the intercept, Ɛ is the normally distributed noise, andRate of return = (value at end of the year + received dividends during the year - value at the beginning of the year)/(initial value)Test this model by retrieving annual data on a security of your choice (Walmart). Choose a financial index such as S&P 500 as the indicator of the market, and retrieve the data. Use the most recent 20 years as the time span of the data. Perform regression analysis and make sure to include the hypothesis in your study. Provide your results and write your conclusions. Include all relevant information and conclusions, significances, the final regression model, coefficient of determination, graph of the regression line accompanied in the scatterplot, extent of residuals, and normality of residuals. Does the model seem to be valid according to your study? If so, is the influence positive or adverse? If you conclude influence, then your regression model indicates outperformance or underperformance of the market? Explain all your work in detail. Please use APA format and be sure to include in-text citations in your report
Statistic Assignment
It is a Statistic Assignment Using Technology to Produce Scatterplots and Regression Equations. All the information is dow ...
Statistic Assignment
It is a Statistic Assignment Using Technology to Produce Scatterplots and Regression Equations. All the information is down bellow in drop file. Thank you
Paine College One Sample T Rest SPSS Data Analysis Paper
This is the second of two sections for your Data Analysis Assignment. In this section, you will complete a one-sample t-te ...
Paine College One Sample T Rest SPSS Data Analysis Paper
This is the second of two sections for your Data Analysis Assignment. In this section, you will complete a one-sample t-test on new data and interpret the results. This Data Analysis Assignment focuses on the application of the One-Sample t-Test. While completing this assignment contemplate: What are some ways in which the one-sample t-test can be useful? Will this analysis play a role in your own research paper plan?
Review & ReflectIn this Data Analysis project, we will be examining the distribution of three common areas of academic study and comparing these to the known mean in the overall population. Fifty students in this class have taken three measures of academic success — Math, Reading, and Spelling. As the teacher you know that each test has been used nationally and know that the expected means for each test are:• Math –μ=55• Reading μ=62• Spelling μ=83
You want to know if your class is significantly different from the expected mean from the population. The data for your class of 50 students 1. State your null and alternative hypotheses.2. Is this a one or two-tailed hypotheses? Explain.3. Calculate the appropriate statistical test. (If you get stuck, refer back to the video from 2a or see the description in your book)• Be sure to include measures of central tendency and variability in your analysis/writeup.4. Can you reject the null hypothesis? Why or why not?5. Write a results section for your findings.• Include the descriptive statistics, type of statistical test, and results of the tests, with effect sizes and confidence intervals.
Earn money selling
your Study Documents