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A calculate and interpret the sample correlation

A sample of 10 observations provides the following statistics:

S_x = 13, S_y = 18, and S_xy = 117.22

a. Calculate and interpret the sample correlation coefficient r_xy.

b. Specify the hypotheses to determine whether the population correlation coefficient is positive.

c. Calculate the value of the test statistic. Approximate the p -value.

d. At the 5 % significance level, what is the conclusion to the test? Explain.

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Basic Statistics: A calculate and interpret the sample correlation

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