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1. The National Center for Health Statistics reports that the systolic blood pressure for males 35...

1. The National Center for Health Statistics reports that the systolic blood pressure for males 35 to 44 years of age has a mean of 128. In a study of business executives, a random sample of 101 executives has a mean systolic blood pressure of 134 with a standard deviation of 25. Do the data suggest that the mean systolic blood pressure for business executives is higher than 128? Use a 5% significance level?

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