Multiple Choice
What did the researcher do to cause the change in the shaded regions in the two distributions? "Before"
"After"
A) She changed alpha from .05 to .01.
B) She changed alpha from .05 to .10.
C) She changed from a directional to a non-directional alternative hypothesis.
D) She changed from a non-directional to a directional alternative hypothesis.
Correct Answer:

Verified
Correct Answer:
Verified
Q108: Imagine the value of a t-test is
Q109: A researcher collects data from a group
Q110: A researcher calculates the t-test for independent
Q111: A researcher states the following hypotheses: H<sub>0</sub>:
Q112: For a study analyzing the difference between
Q114: _ represent(s) the variability of differences between
Q115: One assumption related to the t-test for
Q116: A _ symbol is part of the
Q117: In writing the results of the t-test
Q118: The sampling distribution of the difference helps