24. Given the hypotheses: H0: Professor Belliard’s students are not cooler than

Question

24. Given the hypotheses: H0: Professor Belliard’s students are not cooler than the average Lehman Student H1: Professor Belliard’s students are cooler than the average Lehman Student. The hypothesis test used would be?

a. One-sided, Left

b. One-sided, Right

c. Two-sided

d. There’s not enough information.

25. The sign (+/-) of a Z score tells you what about that value?

a. Its distance from the mean.

b. Whether the value is good or bad.

c. How normal the value is.

d. Whether a value is above or below the mean.

3. A medical researcher has conducted tests on a new method of detecting hepatic (liver) tumors in heavy drinkers and wants to report his findings in the Journal of the American Medical Association. The following table shows his results.

a. What is the prevalence of hepatic tumors?

b. What is the sensitivity of this test?

c. What it the false negative rate for this test?

d. What is the positive predictive value for this test?

e. (Bonus) Based on your answers would you consider using this test as a health professional? Explain your reasoning

Explanation / Answer

24. Here H1 says that average of : Professor Belliard’s students are cooler than the average Lehman Student.

Hence mu1>mu2

Hence it is one sided right tailed test. So answer is b.

25.answer is d. Whether a value is above or below the mean. Reason is as below

Related Questions

Navigate

• Browse (All)
• Browse 2
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.