Related-Samples t-Test a. What was the dependent variable in this analysis? b. W

Question

Related-Samples t-Test a. What was the dependent variable in this analysis? b. When did they test the students on that dependent variable? c. Describe the sample (using the given statistics). d. What are the null and alternative hypotheses for this study? e. Write out the appropriate t-test formula using the numbers given in the output. Make sure to write out the original formula in symbols before putting in the numbers. f. Complete Hypothesis Test Step 4. i. Decision about null hypothesis? ii. Is it significant? iii. Sentence iv. APA style

Explanation / Answer

(a) The difference between Freshman year science score and Senior year science score

(b) First time suring the Freshman year and again during the Senior year

(c) The Freshman year scores have a mean of 51.85 (N = 200) and standard deviation of 9.9. The Senior year scores have a mean of 53.05 (N = 200) and standard deviation of 12.10. The correlation coefficient between the two variables is 0.878.

(d) Ho: d = 0 versus Ha: d 0

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