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Watch your cholesterol: The mean serum cholesterol level for U.S. adults was 198, with a standard deviation of 39.3 (the units are milligrams per deciliter). A simple random sample of 106 adults is chosen. Use the TI-84 Plus calculator. Round the answers to at least four decimal places.
Part 1 of 3 (a) What is the probability that the sample mean cholesterol level is greater than 205?
The probability that the sample mean cholesterol level is greater than 205 is 0.0331 .
Part 2 of 3 (b) What is the probability that the sample mean cholesterol level is between 186 and 192?
The probability that the sample mean cholesterol level is between 186 and 192 is 0.0572 .
Part: $2 / 3$
Part 3 of 3 (c) Using a cutoff of 0.05 , would it be unusual for the sample mean to be less than 194?
It $\square$ (Choose one) be unusual for the sample mean to be less than 194, since the probability is $\square$ . Skip Part Check Save For Later Submit Assignmen