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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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f) By comparing the test statistic to the critical value, what would you conclude and why? АP (3) g) Is there a conflict in this output using both the critical value and the P- value methods? AN (3)
Transcribed Image Text:f) By comparing the test statistic to the critical value, what would you conclude and why? АP (3) g) Is there a conflict in this output using both the critical value and the P- value methods? AN (3)
QUESTIONS 2 A company claims that its best-selling product contain more than 40 qualities. This claim is tested at 1% significance. Evidence suggests that the product is normally distributed. Information from a computer output of the hypothesis test is listed as follows. Sample mean = 42.6 P-value = 0.008 Sample standard deviation = 3.7 Sample size = 15. Test statistic t = 2.72155 Critical value t = 2.62610 a) State the hypothesis and identify which of them is the claim. AP (3) b) Is this a right-tailed, left-tailed, or two-tailed test? Explain in one sentence. АP (3) c) How was the p– value obtained? AN (2) d) From the observed P-value, what would you conclude and why? АP (3) e) Is this a small sample or a large sample test? Explain. АP (3) 3
Transcribed Image Text:QUESTIONS 2 A company claims that its best-selling product contain more than 40 qualities. This claim is tested at 1% significance. Evidence suggests that the product is normally distributed. Information from a computer output of the hypothesis test is listed as follows. Sample mean = 42.6 P-value = 0.008 Sample standard deviation = 3.7 Sample size = 15. Test statistic t = 2.72155 Critical value t = 2.62610 a) State the hypothesis and identify which of them is the claim. AP (3) b) Is this a right-tailed, left-tailed, or two-tailed test? Explain in one sentence. АP (3) c) How was the p– value obtained? AN (2) d) From the observed P-value, what would you conclude and why? АP (3) e) Is this a small sample or a large sample test? Explain. АP (3) 3
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