iPad 11:18 PM * 86%- For this problem you will use SPSS and Chapter 12 Data Set1
ID: 3058353 • Letter: I
Question
iPad 11:18 PM * 86%- For this problem you will use SPSS and Chapter 12 Data Set1. This is a pre-test/post-test study. The research question is: "Is the pre-test mean different from the post-test mean?" (a) Which statistical test should we usei? O t-test for independent means O one-sample Z-test O t-test for dependent means (paired t-test) (b) Based on the statement of the research question, is this a one-tailed or two-tailed test? O One-tailed O Two-tailed (c) What is Ho, the null hypothesis? O The pre-test mean is greater than the post-test mean. O The pre-test mean is different from the post-test mean. O The pre-test mean is less than the post-test mean. O The pre-test mean is not different from the post-test mean. (d) Based on the statement of the research question, what is H1, the research hypothesis? O The pre-test mean is not different from the post-test mean O The pre-test mean is less than the post-test mean. O The pre-test mean is different from the post-test mean. O The pre-test mean is greater than the post-test mean. (e) Use SPSS to test the null hypothesis that there is no difference in the pre-test and post-test means. From the SPSS output: What is the test statistic t (obtained value) rounded to three decimals? (Note: Depending on the order in which you entered the two variables in the SPSS variable window, you will get a positive or negative value for t. Report the positive value here.)Explanation / Answer
iPad 11:18 PM * 86%- For this problem you will use SPSS and Chapter 12 Data Set1. This is a pre-test/post-test study. The research question is: "Is the pre-test mean different from the post-test mean?" (a) Which statistical test should we usei? O t-test for independent means O one-sample Z-test O t-test for dependent means (paired t-test) (b) Based on the statement of the research question, is this a one-tailed or two-tailed test? O One-tailed O Two-tailed (c) What is Ho, the null hypothesis? O The pre-test mean is greater than the post-test mean. O The pre-test mean is different from the post-test mean. O The pre-test mean is less than the post-test mean. O The pre-test mean is not different from the post-test mean. (d) Based on the statement of the research question, what is H1, the research hypothesis? O The pre-test mean is not different from the post-test mean O The pre-test mean is less than the post-test mean. O The pre-test mean is different from the post-test mean. O The pre-test mean is greater than the post-test mean. (e) Use SPSS to test the null hypothesis that there is no difference in the pre-test and post-test means. From the SPSS output: What is the test statistic t (obtained value) rounded to three decimals? (Note: Depending on the order in which you entered the two variables in the SPSS variable window, you will get a positive or negative value for t. Report the positive value here.)
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