If you wish to test the claim that the mean of the population is 28, the appropriate null hypothesis is
Stats Final Review

Quiz
•
Mathematics
•
9th - 12th Grade
•
Hard
Barbara White
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
μ = 28
μ ≥ 28
x > 28
x = 28
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ho represents...
the null hypothesis
the alternative hypothesis
the claim
HO
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The degrees of freedom for the t test for means are
1
n
n-1
unnecessary
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
For the z-test, if the population standard deviation is unknown and n ≥ 30, one can substitute _______ for σ.
t
σ2
n
s
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
To test the claim that the proportion is less than .76, you would use a(n) _____________ test.
right-tailed
left-tailed
two-tailed
none of the above
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
To test the variance or standard deviation, you would use a(n) _____________ test.
z
t
chi-square
proportion
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What test can be used to test the difference between two sample means when the population variances are known?
z
t
chi-square
proportion
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