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Two Sample Hypothesis Testing
Test Description: Independent v. dependent, variables used for two samples
Instructions: Answer all questions to get your test result.
1) _______ samples involve measurements taken from two different sets of items.
A
independent
B
dependent
C
not enough information
D
neither
2) _______ samples are paired samples for one set of items.
A
dependent
B
not enough information
C
independent
D
neither
3) The sample selected from the first population is not related to the sample selected from the second population.
A
neither
B
independent
C
dependent
D
not enough information
4) Each member of one sample corresponds to a member of the other sample.
A
dependent
B
independent
C
not enough information
D
neither
5) Example of _______ samples: birth weights of 25 baby boys, birth weights of 25 baby girls
A
not enough information
B
neither
C
independent
D
dependent
6) Example of _______ samples: times for students to run a mile in the beginning of the year v. the end of the year
A
independent
B
neither
C
dependent
D
not enough information
7) When testing if there’s a difference between two means, the null hypothesis is mu1 = mu2, and the alternative hypothesis is...
A
mu1 is not equal to mu2.
B
none
C
mu2 is greater than mu2.
D
mu1 is less than mu2.
8) The weighted estimate for p1 and p2 is _______.
A
chi-square
B
p hat
C
p bar
D
z
9) The difference between entries for a data pair, d = _______.
A
x1 * x2
B
x1 + x2
C
x1 / x2
D
x1 - x2
10) If z is in the rejection region, you should...
A
fail to reject the null hypothesis.
B
buy a party hat.
C
go to law school to get a degree of freedom.
D
reject the null hypothesis.
*select an answer for all questions
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