Homework 11

Book Exercises:
7.6, 7.14, 7.20, 7.29, 7.40, 7.42, 7.44

• For 7.6, find the p-value by using Table D (inside back cover of your textbook). Keep in mind that when you're using this table, you can typically only give an interval in which the p-value lies.
• Use Minitab to get the summary statistics needed in problem 7.20. Then find the confidence interval both by hand and using Minitab. Remember, the data sets that you see displayed in your textbook can be found online in the folder P:\Data\MATH\StatM&M4.
• For 7.40, use Minitab to get the summary statistics, then conduct the test. Use Table D to find the p-value.
• For 7.42, use Minitab to conduct the tests and form your confidence interval.
• To find the difference between two columns, row by row, in Minitab, use CALC > CALCULATOR, and remember to store the result in a new column.