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(b) If x= 37.4 and s= 8.2, compute the test statistic.

(b) If x= 37.4 and s= 8.2, compute the test statistic.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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To test Ho: μ = 34 versus H₁: μ# 34, a simple random sample of size n = 40 is obtained. Complete parts (a) through (f) below. Click the icon to view the table of critical t-values. (a) Does the population have to be normally distributed to test this hypothesis by using t-distribution methods? Why? A. No-there are no constraints in order to perform a hypothesis test. B. No-since the sample size is at least 30, the underlying population does not need to be normally distributed. C. Yes-since the sample size is at not least 50, the underlying population does not need to be normally distributed. O D. Yes-the population must be normally distributed in all cases in order to perform a hypothesis test. (b) If x= 37.4 and s= 8.2, compute the test statistic. (Round to two decimal places as needed.)
Transcribed Image Text:To test Ho: μ = 34 versus H₁: μ# 34, a simple random sample of size n = 40 is obtained. Complete parts (a) through (f) below. Click the icon to view the table of critical t-values. (a) Does the population have to be normally distributed to test this hypothesis by using t-distribution methods? Why? A. No-there are no constraints in order to perform a hypothesis test. B. No-since the sample size is at least 30, the underlying population does not need to be normally distributed. C. Yes-since the sample size is at not least 50, the underlying population does not need to be normally distributed. O D. Yes-the population must be normally distributed in all cases in order to perform a hypothesis test. (b) If x= 37.4 and s= 8.2, compute the test statistic. (Round to two decimal places as needed.)
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