Reading 11: Hypothesis Testing - LOS a, (Part 3) ～ Q1-5 industry, believes, average, return

mayanfang1

Q1. James Ambercrombie believes that the average return on equity in the utility industry, µ, is greater than 10%. What are the null (H₀) and alternative (H_a) hypotheses for his study?

A)    H₀: µ < 0.10 versus H_a: µ > 0.10.

B)    H₀: µ ≤ 0.10 versus H_a: µ > 0.10.

C)    H₀: µ > 0.10 versus H_a: µ < 0.10.

Q2. George Appleton believes that the average return on equity in the amusement industry, µ, is greater than 10%. What is the null (H₀) and alternative (H_a) hypothesis for his study?

A)    H₀: > 0.10 versus H_a: ≤ 0.10.

B)    H₀: ≤ 0.10 versus H_a: > 0.10.

C)    H₀: > 0.10 versus H_a: < 0.10.

Q3. Brian Ci believes that the average return on equity in the airline industry, µ, is less than 5%. What are the appropriate null (H₀) and alternative (H_a) hypotheses to test this belief?

A)    H₀: µ ≥ 0.05 versus H_a: µ < 0.05.

B)    H₀: µ < 0.05 versus H_a: µ ≥ 0.05.

C)    H₀: µ < 0.05 versus H_a: µ > 0.05.

Q4. Jill Woodall believes that the average return on equity in the retail industry, µ, is less than 15%. What are the null (H₀) and alternative (H_a) hypotheses for her study?

A)   H₀: µ ≤ 0.15 versus H_a: µ > 0.15.

B)   H₀: µ ≥ 0.15 versus H_a: µ < 0.15.

C)   H₀: µ < 0.15 versus H_a: µ ≥ 0.15.

Q5. Jo Su believes that there should be a negative relation between returns and systematic risk. She intends to collect data on returns and systematic risk to test this theory. What is the appropriate alternative hypothesis?

A)  H_a: ρ < 0.

B)  H_a: ρ > 0.

C)  H_a: ρ ≠ 0.

shing1314

thanks for sharing

BIRMINGHAMaries

谢谢~  很好

小鱼儿崽子

回复看答案~~

chinayuran

感谢楼主！！！！！！！！！！

gaoflex

thank you.

FOREVER396

HAVE A LOOK

kepei7763

thx

祈愿修神

4

jc1188

d