Consider the following scenario, and run the analysis in Excel: Your friend claims it takes 45 minutes to get to work from your housing development. To test this claim, you record over the next several months how long it takes to get to work, pick 50 random days and get a mean of 52 minutes with a standard deviation of 10 minutes. 1) Find a 95% confidence interval for the given data and interpret their results. 2) Run a two sided hypothesis test with a significance level of 0.05. Provide 1. The null and alternative hypothesis. 2. The test statistic 3. The P value 4. The conclusion. 3) Do the results of part 1 and 2 match? 4) Based on these results, what would you state as an overall conclusion (2-3 sentences is fine).

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Consider the following scenario, and run the analysis in Excel:
Your friend claims it takes 45 minutes to get to work from your housing development. To
test this claim, you record over the next several months how long it takes to get to work,
pick 50 random days and get a mean of 52 minutes with a standard deviation of 10
minutes.
1) Find a 95% confidence interval for the given data and interpret their results.
2) Run a two sided hypothesis test with a significance level of 0.05. Provide
1. The null and alternative hypothesis.
2. The test statistic
3. The P value
4. The conclusion.
3) Do the results of part 1 and 2 match?
4) Based on these results, what would you state as an overall conclusion (2-3
sentences is fine).
Transcribed Image Text:Consider the following scenario, and run the analysis in Excel: Your friend claims it takes 45 minutes to get to work from your housing development. To test this claim, you record over the next several months how long it takes to get to work, pick 50 random days and get a mean of 52 minutes with a standard deviation of 10 minutes. 1) Find a 95% confidence interval for the given data and interpret their results. 2) Run a two sided hypothesis test with a significance level of 0.05. Provide 1. The null and alternative hypothesis. 2. The test statistic 3. The P value 4. The conclusion. 3) Do the results of part 1 and 2 match? 4) Based on these results, what would you state as an overall conclusion (2-3 sentences is fine).
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