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Reject Họ. There is sufficient evidence to conclude that the average credit score for mortgages purchased by the company has increased since 2017. b. Determine the precise p-value for this test using Excel. The p-value is O. (Round to three decimal places as needed.)

Reject Họ. There is sufficient evidence to conclude that the average credit score for mortgages purchased by the company has increased since 2017. b. Determine the precise p-value for this test using Excel. The p-value is O. (Round to three decimal places as needed.)

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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In 2017, the average credit score for loans that were purchased by a government-sponsored mortgage loan company was 746. A random sample of 35 mortgages recently purchased by the company was selected, and it was found that the average credit score was 758 with a sample standard deviation of 20. Complete parts a through c. ..... a. Using a = 0.05, is there enough evidence from this sample to conclude that the average credit score for mortgages purchased by the company has increased since 2017? Determine the null and alternative hypotheses. Ho:H s 746 H1:µ > (Type integers or decimals. Do not round.) 746 Determine the appropriate critical value. Select the correct choice below and fill in the answer box within your choice. (Round to three decimal places as needed.) A. ta = 1.691 В. - ta = ta/2 = Calculate the appropriate test statistic. = 3.55 (Round to two decimal places as needed.) State the conclusion. Reject Ho. There is sufficient evidence to conclude that the average credit score for mortgages purchased by the company has increased since 2017. b. Determine the precise p-value for this test using Excel. The p-value is (Round to three decimal places as needed.)
Transcribed Image Text:In 2017, the average credit score for loans that were purchased by a government-sponsored mortgage loan company was 746. A random sample of 35 mortgages recently purchased by the company was selected, and it was found that the average credit score was 758 with a sample standard deviation of 20. Complete parts a through c. ..... a. Using a = 0.05, is there enough evidence from this sample to conclude that the average credit score for mortgages purchased by the company has increased since 2017? Determine the null and alternative hypotheses. Ho:H s 746 H1:µ > (Type integers or decimals. Do not round.) 746 Determine the appropriate critical value. Select the correct choice below and fill in the answer box within your choice. (Round to three decimal places as needed.) A. ta = 1.691 В. - ta = ta/2 = Calculate the appropriate test statistic. = 3.55 (Round to two decimal places as needed.) State the conclusion. Reject Ho. There is sufficient evidence to conclude that the average credit score for mortgages purchased by the company has increased since 2017. b. Determine the precise p-value for this test using Excel. The p-value is (Round to three decimal places as needed.)
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