STAT 200 Quiz 3 Solution Correct Answers
A Quiz 3 solution focusing on inferential statistics and data interpretation.
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STAT 200 QUIZ 3 Solution Correct Answers
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Write the null and alternative hypotheses you would use to test the following situation.
1) 5% of trucks of a certain model have needed new engines after being driven between 0 and 100
1) miles. The manufacturer hopes that the redesign of one of the engine's components has solved this
problem.
A) H0: p > 0.05
HA: p = 0.05
B) H0: p < 0.05
HA: p > 0.05
C) H0: p = 0.05
HA: p < 0.05
D) H0: p < 0.05
HA: p = 0.05
E) H0: p = 0.05
HA: p > 0.05
2) The federal guideline for smog is 12% pollutants per 10,000 volume of air. A metropolitan city is
2)
trying to bring its smog level into federal guidelines. The city comes up with a new policy
where city employees are to use of city transportation to and from work. A local environmental
group does not think the city is doing enough and no real change will occur. An independent
agency, hired by the city, runs a test on the air. What are the null and alternative hypotheses?
A) H0: p = 0.12
HA: p < 0.12
B) H0: p = 0.12
HA: p > 0.12
C) H0: p = 0.12
HA: p ≠ 0.12
D) H0: p ≠ 0.12
HA: p = 0.12
E) H0: p < 0.12
HA: p > 0.12
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Write the null and alternative hypotheses you would use to test the following situation.
1) 5% of trucks of a certain model have needed new engines after being driven between 0 and 100
1) miles. The manufacturer hopes that the redesign of one of the engine's components has solved this
problem.
A) H0: p > 0.05
HA: p = 0.05
B) H0: p < 0.05
HA: p > 0.05
C) H0: p = 0.05
HA: p < 0.05
D) H0: p < 0.05
HA: p = 0.05
E) H0: p = 0.05
HA: p > 0.05
2) The federal guideline for smog is 12% pollutants per 10,000 volume of air. A metropolitan city is
2)
trying to bring its smog level into federal guidelines. The city comes up with a new policy
where city employees are to use of city transportation to and from work. A local environmental
group does not think the city is doing enough and no real change will occur. An independent
agency, hired by the city, runs a test on the air. What are the null and alternative hypotheses?
A) H0: p = 0.12
HA: p < 0.12
B) H0: p = 0.12
HA: p > 0.12
C) H0: p = 0.12
HA: p ≠ 0.12
D) H0: p ≠ 0.12
HA: p = 0.12
E) H0: p < 0.12
HA: p > 0.12
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Document Details
University
University of Maryland
Subject
Statistics