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week 6 ex 7.2.25

week 6 ex 7.2.25 - w w Assignment Week 6 Exercises Date...

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Unformatted text preview: w w Assignment: Week 6 Exercises Date: 10/1/11 Course: Math 201 Fall B10 Time: 2:49 PM Book: Larson: Elementary Statistics: Picturing the World, Se Test the claim about the population mean, u, at the given level of significance using the given sample statistics. Claim: it = 50; a = 0.03. Sample statistics: 3—: = 49.4, s = 3.37, n = 63 Identify the null and alternative hypotheses. Choose the correct answer below. H02 11> 50 H0: ”<50 Ha: p=50 Ha: ”=50 {a H02u=50 H02u=50 Ha' pi 50 Ha' u> 50 H0 ”#50 H02n=50 Ha “=50 Hazu<50 '. ‘4,” Li ’ §¢ 3 if” V Calculate the standardized test statistic. ‘ ' The standardized test statistic is — 1.413 . ’: (G / 5 . 57 {:3 l I ' "' Determine the critical value(s). Select the correct choice below and fill in the answer box to complete your choice. The critical value is sThe critical values are i 2.17 . Determine the outcome and conclusion of the test. Choose the correct answer below. Reject H0. At the 3% significance level, there is enough evidence to support the claim. Fail to reject H0. At the 3% significance level, there is not enough evidence to support the claim. Reject H0. At the 3% significance level, there is enough evidence to reject the claim. Q ail to reject H0. At the 3% significance level, there is not enough evidence to reject the claim. YOU ANSWERED: A A Page 1 ...
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