AP Stats Identify Tests

Quiz
•
Mathematics
•
12th Grade
•
Hard
Anthony Clark
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A mayor is concerned about the percentage of city residents who express disapproval of his job performance. His political committee pays for a newspaper ad, hoping to keep his disapproval rating below 21%. They will use a follow up poll to access effectiveness. What are the correct null and alternative hypotheses?
Ho: p=.21
Ha: p > .21
Ho: p< .21
Ha: p= .21
Ho: p> .21
Ha: p= .21
Ho: p= .21
Ha: p< .21
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
5% of trucks of a certain model have needed new engines after being driven between 0 and 100 miles. The manufacturer hopes that the redesign of one of the engine's components has solved this problem. Write the null and alternative hypotheses for this situation.
Ho: p< 0.05
Ha: p = 0.05
Ho: p = 0.05
Ha: p > 0.05
Ho: p = 0.05
Ha: p < 0.05
Ho: p > 0.05
Ha: p = 0.05
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following represents the appropriate null & alternative hypotheses?
The mean height of women is greater than 64"
H₀: μ > 64"
Hₐ: μ ≠ 64"
H₀: μ = 64"
Hₐ: μ > 64"
H₀: p > 64"
Hₐ: p ≠ 64"
H₀: p = 64"
Hₐ: p > 64"
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
IF P(A and B) = P(A)P(B) then A and B are
Disjoint
Disjoint and Independent
Mutually Exclusive
Independent
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What does this symbol represent?
sample mean
population standard deviation
population mean
sample mew
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What does this symbol represent?
population mean
population standard deviation
parameter standard error
proportion standard deviation
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What tells you the number of standard deviations above or below the mean an observation is?
standard error
z-score
68-95-99.7 Rule
S
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