Question

Question 13 (5 points) A professor would like to assess the hypothesis that the average number of minutes that a student needs to complete a statistics trial is equal to 45 minutes. The correct hypothesis statement would be

Question 13 options:

a) H0: μ = 45; H1: μ > 45.

b) H0: μ = 45; H1: μ ≠ 45.

c) H0: μ ≠ 45; H1: μ = 45.

d) H0: μ = 45; H1: μ < 45.

Question 14 (5 points) The critical value for a two-tail hypothesis trial when the population standard deviation is known, the sample size is 30 or more, and α = 0.01 is ________.

Question 14 options:

a) 2.05

b) 2.33

c) 2.575

d) 2.96

Question 15 (5 points) CoStar would like to trial if the vacancy rate for "warehouse" stores is more than 8%. A Type I error would occur if CoStar concludes that the vacancy rate was

Question 15 options:

a) more than 8% when, in reality, the proportion was 8% or less.

b) 8% or less when, in reality, the proportion was more than 8%.

c) equal to 8% when, in reality, the proportion was 8% or less.

d) not equal to 8% when, in reality, the proportion was equal to 8%.

Answer 1

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