Essay
A kindergarten teacher wanted to see if her students' social skills changed over the academic year. She compared the scores on a standardized measure of social skills at the beginning of the year, and the end of the year. The results follow:
a. What is the null hypothesis?
b. Is a one or two-tailed test more appropriate?
c. Calculate t .
d. Write a sentence explaining the results.
Correct Answer:
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a. 
b. Two-tailed, because a d...View Answer
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Correct Answer:
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b. Two-tailed, because a d...View Answer
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