According to a University Center for Logistics Management, 8% of all merchandise sold in the United Statesgets returned. Seattle department store sampled 88 items sold in January and found that 8 of the itemswere returned.If you have the following null and alternative hypotheses for a test you are running:Ho:p = 0.08Ha:p < 0.08Calculate the test statistic, rounded to 3 decimal places.Submit QuestionCe%2324%4.780eruSIdb.6065

Givensample size(n)=88No.of items were returned(x)=8The null and alternative hypothesis…

Answered: According to a University Center for…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

You measure 29 textbooks' weights, and find they have a mean weight of 40 ounces. Assume the population standard deviation is 11.2 ounces. Based on this, construct a 95% confidence interval for the true population mean textbook weight.Give your answers as decimals, to two places
You measure 30 textbooks' weights, and find they have a mean weight of 63 ounces. Assume the population standard deviation is 14 ounces. Based on this, construct a 95% confidence interval for the true population mean textbook weight. Give your answers as decimals, to two places
How Much Do You Read? ~ A nation-wide survey conducted in 2019 asked a random sample of US adults, "During the past 12 months, about how many books did you read either all or part of the way through? Please include any print, electronic, or audiobooks you may have read or listened to." The survey results reported the mean number of books read to be 15. 39 Kelly is a library science major and wonders if adults who have a library card report reading more books in a year than the nationally reported mean. She obtains a random sample of 18 adults with a library card from her community library and asks them the same survey question. From her results she calculates a sample mean of 16.7 and a standard deviation of 4.0441.
According to the document Consumer Expenditures, the average consumer spent $1,874 on apparel and services in 2006. That same year, a sample of 25 consumers in the Northeast had a sample mean and standard deviation of $2,061 and $351, respectively. We are to conduct a hypotheses test to determine whether the 2006 mean annual expenditure on apparel and services for consumers in the Northeast differed from the national mean of $1,874. a. Test statistic isb. The ? − value of the test isc. At the significance level calculated in part b), we conclude that the mean annual expenditure on apparel and services for consumers in the Northeast is
You measure 44 textbooks' weights, and find they have a mean weight of 34 ounces. Assume the population standard deviation is 5.9 ounces. Based on this, construct a 90% confidence interval for the true population mean textbook weight. Give your answers as decimals, to two places
You measure 34 randomly selected textbooks' weights, and find they have a mean weight of 73 ounces. Assume the population standard deviation is 12.6 ounces. Based on this, construct a 99% confidence interval for the true population mean textbook weight.Give your answers as decimals, to two places
An organization monitors many aspects of elementary and secondary education nationwide. Their 2000 numbers are often used as a baseline to assess changes. In 2000, 23% of students had not been absent from school even once during the previous month. In the 2004 survey, responses from 7792 randomly selected students showed that this figure had slipped to 22%. Officials would be concerned if student attendance were declining. Please refer to the following images:
You measure 36 randomly selected textbooks' weights, and find they have a mean weight of 39 ounces. Assume the population standard deviation is 8.5 ounces. Based on this, construct a 90% confidence interval for the true population mean textbook weight. Give your answers as decimals, to two places Check Answer
you compute a two-sample z statistic and it comes out to equal 1.6. What is the p-value if you are doing a two-tailed test? Enter a value between 0 and 100 corresponding to the percentage, e.g. if your p-value equals 2.4%, enter 2.4. Any correctly rounded version will receive full credit.
You measure 49 textbooks' weights, and find they have a mean weight of 41 ounces. Assume the population standard deviation is 14.8 ounces. Based on this, construct a 95% confidence interval for the true population mean textbook weight.Give your answers as decimals, to two places
You measure 38 textbooks' weights, and find they have a mean weight of 73 ounces. Assume the population standard deviation is 7.8 ounces. Based on this, construct a 90% confidence interval for the true population mean textbook weight. Give your answers as decimals, to two places Check Answer
You compute a two-sample z statistic and it comes out to equal 1.6. What is the p-value if you are doing a two-tailed test? Enter a value between 0 and 100 corresponding to the percentage, e.g. if your p-value equals 2.4%, enter 2.4. Any correctly rounded version will receive full credit.

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS