Let x be a random variable that represents the batting average of a professional baseball player. Let y be a random variable that represents the percentage of strikeouts of a professional baseball player. A random sample of n = 6 professional baseball players gave the following information. x 0.312 3.4 0.367 3.1 0.269 11.1 0.300 0.340 4.0 0.248 8.6 7.5 (a) Verify that Ex = 1.836, Ey = 37.7, Ex² = 0.571498, Ey2 = 290.59, Exy = 10.9272, and r= -0.845. Ex 1.836 Ly 37.7 Ex2 0.571498 Ey2 290.59 Exy 10.9272 r -0.845 (b) Use a 5% level of significance to test the claim that p + 0. (Use 2 decimal places.) t-3.16 critical t + 2.776 Conclusion Reject the null hypothesis, there is sufficient evidence that p differs from 0. Reject the null hypothesis, there is insufficient evidence that p differs from 0. O Fail to reject the null hypothesis, there is insufficient evidence that p differs from 0. Fail to reject the null hypothesis, there is sufficient evidence that p differs from 0. (c) Verify that S, 1.9623, a 25.531, and b = -62.900. Se 1.9623 a 25.531 b -62.900
Let x be a random variable that represents the batting average of a professional baseball player. Let y be a random variable that represents the percentage of strikeouts of a professional baseball player. A random sample of n = 6 professional baseball players gave the following information. x 0.312 3.4 0.367 3.1 0.269 11.1 0.300 0.340 4.0 0.248 8.6 7.5 (a) Verify that Ex = 1.836, Ey = 37.7, Ex² = 0.571498, Ey2 = 290.59, Exy = 10.9272, and r= -0.845. Ex 1.836 Ly 37.7 Ex2 0.571498 Ey2 290.59 Exy 10.9272 r -0.845 (b) Use a 5% level of significance to test the claim that p + 0. (Use 2 decimal places.) t-3.16 critical t + 2.776 Conclusion Reject the null hypothesis, there is sufficient evidence that p differs from 0. Reject the null hypothesis, there is insufficient evidence that p differs from 0. O Fail to reject the null hypothesis, there is insufficient evidence that p differs from 0. Fail to reject the null hypothesis, there is sufficient evidence that p differs from 0. (c) Verify that S, 1.9623, a 25.531, and b = -62.900. Se 1.9623 a 25.531 b -62.900
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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