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9. If we are testing a null hypothesis with an Independent t test, we must cast

ID: 3311009 • Letter: 9

Question

9. If we are testing a null hypothesis with an Independent t test, we must cast the obtained value (the t-value statistic) against the critical value within a/an A. A one-tailed test B. A two-tailed test C. Either test would work with a null hypothesis D. The sample size 10. The SPSS output (results) of an independent t-test presents all the following EXCEPT A. The Pearson r correlation coefficient B. Standard Deviation of the groups C. Means of the groups D. Alpha level presented as a two-tailed test of significance 11. In the SPSS output of an independent t-test in which the groups: 14 girls and 16 boys were mean scores of two compared, what number would be presented as the df? A. 30 B. 29 C. 28 D. Not enough information to determine 12. When comparing group differences where no direction of the difference is specified, which one of the following is used? A. Two-tailed test B. One-tailed test C. Directional hypothesis D. Critical value 13. In order to determine whether or not you will reject the null hypothesis, the test statistic (t-value or F-ratio) must be compared against the A. Obtained value B. Significance level C.df D. Critical Value 14. If the ob tained value you generated is g reater than the critical value (as presented in a Table of Critical Values) what should you do? A. Reject the null hypothesis B. Accept the null hypothesis C. Set a higher p value D. Increase the sample size

Explanation / Answer

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9)

C option

Either test

10) A option

It doesn't show us the pearson coefficient