Soc 424 - Statistical Techn » Fall 2021 » Quiz 7
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Question #1
For which level(s) of measurement is a mean useful?
A.
Nominal and ordinal
B.
None of them
C.
Only interval
D.
Only nominal
Question #2
What’s the z score for a 95% confidence interval?
A.
1.64
B.
2
C.
2.57
D.
1.96
E.
2.33
Question #3
A confidence interval estimates a range of values that the
A.
Pop. mean and Sample mean are probably beyond
B.
Sample mean is probably beyond
C.
Pop. mean is probably within
D.
Pop. mean is probably beyond
Question #4
What’s the confidence coefficient if 5% is in each tail?
A.
90%
B.
99%
C.
10%
D.
95%
E.
2.50%
Question #5
If I’m 95% confident that it takes 3 to 8 licks for a student to get to the center of a Tootsie pop but it takes a professor 7 to 12, I can be 95% confident that, in the population…
A.
Students suck more or harder than professors
B.
There might not be a significant difference between the licking/sucking power of students and professors
C.
Professors suck more or harder than students
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