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A manager is interested in determining if the population standard deviation has dropped below 88. Based on a sample of n= 23 items selected randomly from the population, conduct the appropriate hypothesis test at a 0.10 significance level. The sample standard deviation is 71.

A manager is interested in determining if the population standard deviation has dropped below 88. Based on a sample of n= 23 items selected randomly from the population, conduct the appropriate hypothesis test at a 0.10 significance level. The sample standard deviation is 71.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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A manager is interested in determining if the population standard deviation has dropped below 88. Based on a sample of n= 23 items selected randomly from the population, conduct the appropriate hypothesis test at a 0.10 significance level. The sample standard deviation is 71 ..... Determine the null and alternative hypotheses. O A. Ho o2 = 88 HA #88 O B. Ho o<7,744 HA o27,744 O C. Ho o 27,744 HA o<7,744 O D. Ho o<88 HA o2 88 State the decision rule. Select the correct choice below and, if necessary, fill in any answer boxes to complete your choice. (Round to four decimal places as needed) O A. If the test statistic, <x-a reject Ho Otherwise, do not reject Ho O B. If the test statistic, reject Ho or if the test statistic, x<xÍ -«12=, reject Ho Otherwise, do not reject Ho If the test statistic, > = ,reject Ho Otherwise, do not reject Ho
Transcribed Image Text:A manager is interested in determining if the population standard deviation has dropped below 88. Based on a sample of n= 23 items selected randomly from the population, conduct the appropriate hypothesis test at a 0.10 significance level. The sample standard deviation is 71 ..... Determine the null and alternative hypotheses. O A. Ho o2 = 88 HA #88 O B. Ho o<7,744 HA o27,744 O C. Ho o 27,744 HA o<7,744 O D. Ho o<88 HA o2 88 State the decision rule. Select the correct choice below and, if necessary, fill in any answer boxes to complete your choice. (Round to four decimal places as needed) O A. If the test statistic, <x-a reject Ho Otherwise, do not reject Ho O B. If the test statistic, reject Ho or if the test statistic, x<xÍ -«12=, reject Ho Otherwise, do not reject Ho If the test statistic, > = ,reject Ho Otherwise, do not reject Ho
Choose the correct conclusion below. O A. Reject Ho There is insufficient evidence that the population standard deviation is less than 88. O B. Do not reject Ho. There is sufficient evidence that the population standard deviation is less than 88. O C. Do not reject Ho. There is insufficient evidence that the population standard deviation is less than 88. O D. Reject Ho There is sufficient evidence that the population standard deviation is less than 88.
Transcribed Image Text:Choose the correct conclusion below. O A. Reject Ho There is insufficient evidence that the population standard deviation is less than 88. O B. Do not reject Ho. There is sufficient evidence that the population standard deviation is less than 88. O C. Do not reject Ho. There is insufficient evidence that the population standard deviation is less than 88. O D. Reject Ho There is sufficient evidence that the population standard deviation is less than 88.
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