Statistics - Hypothesis Testing Projects

Use the Help feature in MINITAB 16 to read descriptions for the data sets so that you can make meaningful

Use the Help feature in MINITAB 16 to read descriptions for the data sets so that you can make meaningful comments.

Use the data set MBASURVEY MTW in the Student 14 folder.
[5 pts] (a) Construct a 95% confidence interval for the proportion of MBA students who have a Visa card.

The 95% Confidence Interval is (0.7783 and 1.00000)
[5 pts] (b) Construct a 95% confidence interval for the proportion of MBA students who have Mastercard (MC).

The 95% Confidence Interval is (0.3881, 0.7547).
[5 pts] (c) Interpret your results.
Use the data set COATING . MTW .
[5 pts] (a) Construct a 90% confidence interval for the mean coating weight.

The 90% confidence interval for the mean coating weight is (285.91, 292.58).
[5 pts] (b) Construct a 99% confidence interval for the mean coating weight.

The 99% confidence interval for the mean coating weight is (283.91, 294.58).
[5 pts] (c) Interpret your results.
Use the data set LAKES. M TW in the Student 14 folder.
[5 pts] (a) Construct a 95% confidence interval for the mean depth.
Assume the population standard deviation is known to be 5.5 meters.

The 95% confidence interval for the mean depth is (8.799, 10.566).
[5 pts] (b) Construct a 95% confidence interval for the mean area.
Assume the population standard deviation is known to be 120 hectares.

The 95% confidence interval for the mean area is (88.37, 126.91).
[5 pts] (c) Interpret your results for parts (a) and (b).

Use the data file HOSPITAL . MTW . Test whether the average patient
satisfaction rating is at least 5. Assume that the population standard deviation is known to be 1.5. Use \[\alpha =.05\] . Explain your results.

Use the data file PULSEA . MTW in the Student14 folder.
[10 pts] (a) At \[\alpha =.01\] , test whether less than 50% of students smoke.
Explain your results.
[10 pts] (b) At \[\alpha =.01\] , test whether the second pulse rate is at least 80. Explain your results.

Use the data file ASSESS . MTW in the Student14 folder.

[10 pts] (a) Test whether the average number of rooms is 8. Assume that the population standard deviation in the number of rooms is known to be 1.5. Use \[\alpha =.05\] . Explain your results.