Suppose data is obtained from 20 pairs of (x, y) and the sample correlation coefficient is 0.81. (a) Test the hypothesis that H0: ? = 0 against H1: ? ? 0 with ? = 0.01. Reject the null hypothesis. (b) Test the hypothesis that H0: ? = 0.39 against H1: ? ? 0.39 with ? = 0.01. Reject the null hypothesis. (c) Construct a 95% two-sided confidence interval for the correlation coefficient. Round your answer to 3 decimal places. 0.659 ? ? ? 0.961
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Suppose data is obtained from 20 pairs of (x, y) and the sample correlation coefficient is 0.81. (a) Test the hypothesis that H0: Ļ = 0 against H1: Ļ ā 0 with Ī± = 0.01. Reject the null hypothesis. (b) Test the hypothesis that H0: Ļ = 0.39 against H1: Ļ ā 0.39 with Ī± = 0.01. Reject the null hypothesis. (c) Construct a 95% two-sided confidence interval for the correlation coefficient. Round your answer to 3 decimal places: 0.659 ā¤ Ļ ā¤ 0.961.
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