13. A study is being done to test if eating a banana before taking an exam improves test scores. Theirnull hypothesis is that eating a banana has no effect on test scores. The alternative hypothesis isthat eating a banana increases test scores. From this test they got a P-value of0.113. What doesthis tell us?a. Testing at 0.05 level there is significant evidence that eating a banana will increase yourtest score.b. Testing at 0.05 level there is not significant evidence that eating a banana will increaseyour test scores.c. There is not enough information to make a conclusion.14. A Blu-ray manufacturer knows that the disks are supposed to have a diameter of 120mm. Anengineer believes one of the machines is making disks that are the wrong size. He takes a sampleof 10,000 disks and finds that for this machine the mean diameter is 120.07mm. He tests thissample value and finds that the machine is making disks that are significantly different in then120mm in diameter. Most likely why is such a small difference in size significantly different?a. The population average of 120mm is to highb. The machine just has more variability than other machinesc. The sample size is very large, allowing little room for errord. All the above are very likelyс.

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(13) State the hypotheses. Null hypothesis: Alternative hypothesis:

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13. A study is being done to test if eating a banana before taking an exam improves test scores. Their null hypothesis is that eating a banana has no effect on test scores. The alternative hypothesis is that eating a banana increases test scores. From this test they got a P-value of 0.113. What does this tell us? a. Testing at 0.05 level there is significant evidence that eating a banana will increase your test score. b. Testing at 0.05 level there is not significant evidence that eating a banana will increase your test scores. c. There is not enough information to make a conclusion.

13. A study is being done to test if eating a banana before taking an exam improves test scores. Their null hypothesis is that eating a banana has no effect on test scores. The alternative hypothesis is that eating a banana increases test scores. From this test they got a P-value of 0.113. What does this tell us? a. Testing at 0.05 level there is significant evidence that eating a banana will increase your test score. b. Testing at 0.05 level there is not significant evidence that eating a banana will increase your test scores. c. There is not enough information to make a conclusion.

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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