Two Sample Hypothesis Testing Question Preview (ID: 55057)


Independent V. Dependent, Variables Used For Two Samples. TEACHERS: click here for quick copy question ID numbers.

_______ samples involve measurements taken from two different sets of items.
a) independent
b) dependent
c) neither
d) not enough information

_______ samples are paired samples for one set of items.
a) independent
b) dependent
c) neither
d) not enough information

The sample selected from the first population is not related to the sample selected from the second population.
a) independent
b) dependent
c) neither
d) not enough information

Each member of one sample corresponds to a member of the other sample.
a) independent
b) dependent
c) neither
d) not enough information

Example of _______ samples: birth weights of 25 baby boys, birth weights of 25 baby girls
a) independent
b) dependent
c) neither
d) not enough information

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) dependent
c) neither
d) not enough information

When testing if there’s a difference between two means, the null hypothesis is mu1 = mu2, and the alternative hypothesis is...
a) mu1 is less than mu2.
b) mu2 is greater than mu2.
c) mu1 is not equal to mu2.
d) none

The weighted estimate for p1 and p2 is _______.
a) p bar
b) p hat
c) z
d) chi-square

The difference between entries for a data pair, d = _______.
a) x1 + x2
b) x1 / x2
c) x1 * x2
d) x1 - x2

If z is in the rejection region, you should...
a) reject the null hypothesis.
b) fail to reject the null hypothesis.
c) buy a party hat.
d) go to law school to get a degree of freedom.

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