HYPOTHESIS TESTING: PRACTICE 1; SINGLE MEAN, KNOWN POPULATION STANDARD DEVIATION

Ans: Crop one question at a time 30. A is used when all combinations of data are valid (like birth year is prior to marriage year). a) Completeness check b) Format check c) Range check d) Check digit check el Consistency check Ans:8. Since both o and sy are given, which should be used? In 1-2 complete sentences, explain why. 9. State the distribution to use for the hypothesis test. 10. Sketch a graph of the situation. Label the horizontal axis. Mark the hypothesized mean and the sample mean x. Shade the area corresponding to the p-value. 1 1. Find the p-value: 12. At a pre-conceived a = 0.05, what is your: a. Decision: b. Reason for the decision: c. Conclusion (write out in a complete sentence): DISCUSSION QUESTION 13. Does it appear that the average jail time spent for first time convicted burglars has increased? Why or why not