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A medical researcher attempted to learn if a disease is accompanied by an increased in body...

A medical researcher attempted to learn if a disease is accompanied by an increased in body temperature. She measured the body temperature of 12 people diagnosed as having the disease and obtained the following temperatures (in degrees F): 99.3, 99.1, 100.4, 98.4, 98.2, 98.9, 99.7, 100.1, 100.7, 99.0, 98.8, 99.2. Does the mean body temperature of these individuals differ from a hypothesized population mean of 98.6 degree F? Use a two-tailed test and a 0.05 significance level

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