FU Statistics Methods Null Hypothesis Worksheet

Description

QUESTION 1
1.
Some of the following statements refer to the null hypothesis, some to the alternate hypothesis. State the null hypothesis, H0, and
the alternative hypothesis, Ha, in terms of the appropriate parameter (μ or p).
The mean number of years Americans work
before retiring is 34.
At most 60% of Americans vote in presidential
elections.
A. H0: μ ≤ 34; Ha: μ > 34
B. H0: μ = 34; Ha: μ ≠ 34
C. H0: μ > 34; Ha: p ≠ 34
D. H0: μ > 0.60; Ha: p ≠ 0.60
E. H0: p = 0.60; Ha: p ≠ 0.60
F. H0: p ≤ 0.60; Ha: p > 0.60
QUESTION 2
1.
Some of the following statements refer to the null hypothesis, some to the alternate hypothesis. State the null hypothesis, H0, and
the alternative hypothesis, Ha, in terms of the appropriate parameter (μ or p).
A. H0: p = 0.29; Ha: p ≠ 0.29
B. H0: μ = 100,000; Ha: μ ≠ 100,000
C. H0: μ ≥ 100,000; Ha: μ 10
The mean number of cars a person owns in her C. H0: p = 0.05; Ha: p 6
from cities, given the choice.
Europeans have a mean paid vacation each
year of six weeks.
QUESTION 4
1.
Some of the following statements refer to the null hypothesis, some to the alternate hypothesis. State the null hypothesis, H0, and
the alternative hypothesis, Ha, in terms of the appropriate parameter (μ or p).
(In symbols or for words use p, mu, less than, greater than, equal to, or not equal to)
The chance of developing breast cancer is under 11% for women.
H0:
≥ 0.11; Ha:
Private universities’ mean tuition cost is more than \$20,000 per year.
H0:
≤ 20,000; Ha:
QUESTION 5
1.
0.11
20,000
A statistics instructor believes that fewer than 20% of Evergreen Valley College (EVC) students attended the opening night midnight
showing of the latest Harry Potter movie. She surveys 84 of her students and finds that 11 attended the midnight showing.
An appropriate alternative hypothesis is:
a. p > 0.20
b. p = 0.20
c. p ≤ 0.20
d. p