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probability A normal population has a mean of 74 and a standard deviation of 9. You select a sample of 52. Use Appendix B.1 for

probability
A normal population has a mean of 74 and a standard deviation of 9. You select a sample of 52. Use Appendix B.1 for the z-values. Compute the probability that the sample mean is: (Round the z-values to 2 decimal places and the final answers to 4 decimal places.) a. Less than 72. Probability 0.0548 b. Between 72 and 76. Probability 0.8904 c. Between 76 and 77. Probability 0.9400 d. Greater than 77. Probability 0.0082

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