Find the standardized test statistic t for a sample with n= 20, x = 13, s= 2.0, and a=0.05 if H: u < 13.4. Round your answer to two decimal places. O A. - 1.27 B. -0.89 OC. - 1.23 O D. -0.87

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Find the standardized test statistic t for a sample with n= 20, x = 13, s=2.0, and a= 0.05 if Ha: u < 13.4. Round your answer to two decimal places.
O A. - 1.27
B. -0.89
OC. -1.23
O D. -0.87
Click to select your answer.
Dec 04, 2009
Compute the value of the test statistic? | Yahoo Answers
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Transcribed Image Text:Find the standardized test statistic t for a sample with n= 20, x = 13, s=2.0, and a= 0.05 if Ha: u < 13.4. Round your answer to two decimal places. O A. - 1.27 B. -0.89 OC. -1.23 O D. -0.87 Click to select your answer. Dec 04, 2009 Compute the value of the test statistic? | Yahoo Answers Type here to search 立
The mean age of bus drivers in Chicago is 54.4 years. If a hypothesis test is performed, how should you interpret a decision that rejects the null hypothesis?
O A. There is sufficient evidence to support the claim u =54.4.
O B. There is not sufficient evidence to support the claimu = 54.4.
O C. There is sufficient evidence to reject the claim u = 54.4.
O D. There is not sufficient evidence to reject the claim u = 54.4.
Click to select your answer.
Dec 04, 2009
Compute the value of the test statistic? | Yahoo Answers
Type here to search
Transcribed Image Text:The mean age of bus drivers in Chicago is 54.4 years. If a hypothesis test is performed, how should you interpret a decision that rejects the null hypothesis? O A. There is sufficient evidence to support the claim u =54.4. O B. There is not sufficient evidence to support the claimu = 54.4. O C. There is sufficient evidence to reject the claim u = 54.4. O D. There is not sufficient evidence to reject the claim u = 54.4. Click to select your answer. Dec 04, 2009 Compute the value of the test statistic? | Yahoo Answers Type here to search
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