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The normal body temperature measured by placing the thermometer under the tongue is assumed to be normally distributed with a standard deviation of 0.7oC. Body temperatures of 52 subjects were recorded and the average is 36.83oC.

a. Find a 98% confidence interval for the mean body temperature?

b. Interpret the interval obtained in part (a) in the context of this question.

c. 37oC is commonly assumed to be "normal". Based on the interval obtained in part(a), do these data suggest otherwise? Explain.

 

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