Suppose data is obtained from 20 pairs of (x, y) and the sample correlation coefficient is 0.89. (a) Test the hypothesis that Ho: p = 0 against H1:p + 0with a = 0.05. (b) Test the hypothesis that Ho: p = 0.30 against H: p + 0.30 with a = 0.05. (c) Construct a 95% two-sided confidence interval for the correlation coefficient. Round your answer to 3 decimal places. i

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