Please I want to you to answer the all six questions in the Quiz page Quiz 1 Pro

Question

Please I want to you to answer the all six questions in the Quiz page Quiz 1 Problem 2.29 Read over problem 2.29 on page 62 and answer the following questions. 1. Select the appropriate null and alternate hypothesis a. Ho: Algsc H100c versus H1: Hosc H10oc b. Ho: Au95c S H100 versus H1 Augsc H10oc C. Ho Au9sc 2 H10 oc versus H1: U95c 100C 2. Find the test statistic, t 3. Find the p-value for the test 4. What are your conclusions (Use a .05) 5. Find a 95% confidence interval on the difference in population means 6. Interpret the confidence interval

Explanation / Answer

1. Ans is b.

H0: mean_100>=mean_95

Ha: mean_100<mean_95

This is a 1-sided t-test

2. t-stat computation:

3. P-value

4. p-value<0.05; reject H0; conclude yes, mean_100<mean_95

5.

6. If you sample between these CI 95% of the case you will get the true mean

MS Excel formla:

Pooled ST DEV= 1.82015 SE= 0.910075 t-stat= -2.769

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