A researcher selects a sample and administers a treatment to the individuals in the sample. If the sample is used for a hypothesis test, what does the alternative hypothesis (H1) say about the treatment?
Options:
a. The treatment adds a constant to each score.
b. The treatment causes a change in the scores.
c. The treatment has no effect on the scores.
d. The treatment multiplies each score by a constant.
Null hypothesis: the sample does not affect due to different treatments
Alternate hypothesis: the sample affects change due to different treatments
b. The treatment causes a change in the scores.
A researcher selects a sample and administers a treatment to the individuals in the sample. If...
Question 3 5 pts A researcher selects a sample from a population with a mean of u= 40 and administers a treatment to the individuals in the sample. If the treatment is expected to decrease scores, which of the following is the correct statement of the null hypothesis for a one-tailed test? The researcher can reject the null hypothesis with a = .05 but not with a = .01. The researcher can reject the null hypothesis with either a =...
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this is a single sample t test problem
this is math
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