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MESSAGE AREA: A random sample has 49 values. The sample mean is 8.5 and the sample standard deviation is 1.5. use a level of significance

MESSAGE AREA: A random sample has 49 values. The sample mean is 8.5 and the sample standard deviation is 1.5. use a level of significance of 0.01 to conduct a left tailed test of the claim that the population mean is 9.2

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