9.1 Correlation / 100% CORRECT Answers

A manager wishes to determine the relationship between the number of miles (in hundreds of miles) the manager's sales representatives travel per month and the amount of sales (in thousands of dollars) per month. Calculate the correlation coefficient, r. - 0.632 Calculate the correlation coefficient, r, for the data below. 4/21 - -0.104 Calculate the correlation coefficient, r, for the data below. 4/-16 - 0.990 Calculate the correlation coefficient, r, for the data below. 4/20 - -0.995 Given a sample with r = 0.321, n = 30, and α = 0.10, determine the standardized test statistic t necessary to test the claim ρ = 0. Round answers to three decimal places. - 1.793 Given a sample with r = 0.321, n = 30, and α = 0.10, determine the critical values t0 necessary to test the claim o=0 - ± 1.701 Given a sample with r = -0.541, n = 20, and α = 0.01, determine the critical values t0 necessary to test the claim o=0 - ± 2.878 Given a sample with r = -0.541, n = 20, and α = 0.01, determine the standardized test statistic t necessary to test the claim ρ = 0. Round answers to three decimal places. - -2.729 Given a sample with r = -0.765, n = 22, and α = 0.02, determine the standardized test statistic t necessary to test the claim ρ = 0. Round answers to three decimal places. - -5.312 Given a sample with r = -0.765, n = 22, and α = 0.02, determine the critical values t0 necessary to test the claim o=0 - ± 2.528 Given a sample with r = 0.823, n = 10, and α = 0.05, determine the critical values t0 necessary to test the claim o=0 - ± 2.306