What is normal, when it comes to people's body temperatures? A random sample of 350 human body temperatures had a mean of 98.35° and a standard deviation of 0.72°. (a) Construct a 99% confidence...

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Extracted text: What is normal, when it comes to people's body temperatures? A random sample of 350 human body temperatures had a mean of 98.35° and a standard deviation of 0.72°. (a) Construct a 99% confidence interval for the average body temperature of healthy people. (Round your answers to two decimal places.) to (b) Does the confidence interval constructed in part (a) contain the value 98.6°, the usual average temperature cited by physicians and others? If not, what conclusions can you draw? O Since the set of possible values for u given in the confidence interval does not include the value u = 98.6°, it is plausible that the true average body temperature for healthy humans is 98.6°, the usual average temperature cited by physicians and others. O since the set of possible values for u given in the confidence interval does not include the value u = 98.6°, it is not likely that the true average body temperature for healthy humans is 98.6°, the usual average temperature cited by physicians and others. O Since the set of possible values for u given in the confidence interval includes the value u = 98.6°, it is plausible that the true average body temperature for healthy humans is 98.6°, the usual average temperature cited by physicians and others. O Since the set of possible values for u given in the confidence interval includes the value u = 98.6°, it is not likely that the true average body temperature for healthy humans is 98.6°, the usual average temperature cited by physicians and others.