Question

A) For our class, the ______ hypothesis will always have an equal sign (=) in it.

a. Null

b. Alternative

B) Under what situation do we reject the null hypothesis?

a. When our data is from a random sample

b. When the P-value < α

c. When the P-value ≥ α

d. When we choose α less than 5%

C) Which is the best description of the P-value?

a. The probability that the data is good

b. The chance that we reject the null hypothesis

c. The amount of evidence we have to reject H0 (smaller P-value = more evidence)

d. The proportion of time we get the right answer

D) We want to assess the claim that the average salary at USU is greater than $60,000. The hypotheses are:

a. H0: µ = 60000 Hα: µ > 60000

b. H0: µ = 60000 Hα: µ < 60000

c. H0: µ = 60000 Hα: µ ≠ 60000

d. H0: µ > 60000 Hα: µ = 60000

E) Is the average number of points scored by USU this year significantly different from 23. The hypotheses are:

a. H0: µ ≠ 23 Hα: µ = 23

b. H0: µ = 23 Hα: µ > 24

c. H0: µ = 23 Hα: µ < 23 and µ > 23

d. H0: µ = 23 Hα: µ ≠ 23

F) Is the average weight of USU’s offensive lineman less than the national average of 280lbs. The hypotheses are:

a. H0: µ < 280 Hα: µ = 280

b. H0: µ = 280 Hα: µ > 280

c. H0: µ = 280 Hα: µ < 280

d. H0: µ = 280 Hα: µ ≠ 280

G) A 95% confidence interval gives (31, 37). A significance test using α = 0.05 with H0: µ = 32 vs. Hα: µ ≠ 32 would:

a. Reject H0

b. Fail to reject H0

H. A 95% confidence interval gives (31, 37). A significance test using α = 0.05 with H0: µ = 38 vs. Hα: µ ≠ 38 would:

a. Reject H0

b. Fail to reject H0

Answer 1