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Percentage of sample means

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A final exam in Math 160 has a mean of 73 with standard deviation 9.8. Assume that a random sample of 24 students is selected and the test score of the sample is computed. Assuming the scores are normally distributed, what percentage of sample means are between 7272and 7474?Round the standard score to the nearest tenth before using the z-score tables. Round the final answer to the nearest hundredth of a percent.

Reference no: EM131116062

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