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Related-Samples T-Test Mean Pair 1 Before After -3.66667 Std. Deviation 4.41210 Paired Samples Test Paired Differences Std. Error Mean 1.80123 95% Confidence interval of the Difference Lower -8.29689 Upper 96355 t -2.036 df 5 Sig. (2-tailed) 097 ok at the above Related-Samples t-Test SPSS output and use it to answer the following questions. Recall that we have always used a test value of zero for the Related-Samples t-test. Therefore, compare that test value with the 95% C.I. given on the SPSS output. Is that test value inside the interval or outside the interval? Inside or Outside interval? Based your answer to part (a), do you think that a two-tailed hypothesis test using alpha- .05 would Reject Ho? (No credit unless your answer is consistent with your answer to part a).

Related-Samples T-Test Mean Pair 1 Before After -3.66667 Std. Deviation 4.41210 Paired Samples Test Paired Differences Std. Error Mean 1.80123 95% Confidence interval of the Difference Lower -8.29689 Upper 96355 t -2.036 df 5 Sig. (2-tailed) 097 ok at the above Related-Samples t-Test SPSS output and use it to answer the following questions. Recall that we have always used a test value of zero for the Related-Samples t-test. Therefore, compare that test value with the 95% C.I. given on the SPSS output. Is that test value inside the interval or outside the interval? Inside or Outside interval? Based your answer to part (a), do you think that a two-tailed hypothesis test using alpha- .05 would Reject Ho? (No credit unless your answer is consistent with your answer to part a).

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Related-Samples T-Test C. Mean Pair 1 Before After -3.66667 Now look at the p-value. Std. Deviation 4.41210 Pair 1 Paired Samples Test Mean Std. Deviation 3.20936 Before After -4.50000 Paired Differences Std. Error Mean 1.80123 1. Look at the above Related-Samples t-Test SPSS output and use it to answer the following questions. a. Recall that we have always used a test value of zero for the Related-Samples t-test. Therefore, compare that test value with the 95% C.I. given on the SPSS output. Is that test value inside the interval or outside the interval? Inside or Outside interval? b. Based your answer to part (a), do you think that a two-tailed hypothesis test using alpha= .05 would Reject Ho? (No credit unless your answer is consistent with your answer to part a). Would a two-tailed, a = .05 hypothesis test Reject Ho? Yes or No: 95% Confidence interval of the Difference Based on the p-value, do you Reject H0? Yes or No: Do your C.I. and p-value answers match? (If they don't match, you've made a mistake in interpreting p-values, C.I.'s, or both. Figure out how to fix it before the exam!) Related-Samples T-Test Lower -8.29689 Paired Samples Test Paired Differences Std. Error Mean 1.31022 Upper t 96355 -2.036 95% Confidence interval of the Difference Lower -7.86802 Upper -1.13198 df t -3.435 df 5 5 Sig. (2-tailed) 097 Sig. (2-tailed) 019
Transcribed Image Text:Related-Samples T-Test C. Mean Pair 1 Before After -3.66667 Now look at the p-value. Std. Deviation 4.41210 Pair 1 Paired Samples Test Mean Std. Deviation 3.20936 Before After -4.50000 Paired Differences Std. Error Mean 1.80123 1. Look at the above Related-Samples t-Test SPSS output and use it to answer the following questions. a. Recall that we have always used a test value of zero for the Related-Samples t-test. Therefore, compare that test value with the 95% C.I. given on the SPSS output. Is that test value inside the interval or outside the interval? Inside or Outside interval? b. Based your answer to part (a), do you think that a two-tailed hypothesis test using alpha= .05 would Reject Ho? (No credit unless your answer is consistent with your answer to part a). Would a two-tailed, a = .05 hypothesis test Reject Ho? Yes or No: 95% Confidence interval of the Difference Based on the p-value, do you Reject H0? Yes or No: Do your C.I. and p-value answers match? (If they don't match, you've made a mistake in interpreting p-values, C.I.'s, or both. Figure out how to fix it before the exam!) Related-Samples T-Test Lower -8.29689 Paired Samples Test Paired Differences Std. Error Mean 1.31022 Upper t 96355 -2.036 95% Confidence interval of the Difference Lower -7.86802 Upper -1.13198 df t -3.435 df 5 5 Sig. (2-tailed) 097 Sig. (2-tailed) 019
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