Question

According to a recent poll, 29% of adults in a certain area have high levels of cholesterol. They report that such elevated levels "could be financially devastating to the regions healthcare system" and are a major concern to health insurance providers. Assume the standard deviation from the recent studies is accurate and known. According to recent studies, cholesterol levels in healthy adults from the area average about 205 mg/dL, with a standard deviation of about 35 mg/dL, and are roughly Normally distributed.If the cholesterol levels of a sample of 45 healthy adults from the region is taken, answer part c (c) What is the probability that the mean cholesterol level of the sample will be less than 195?

          According to a recent poll, 29% of adults in a certain area
have high levels of cholesterol. They report that such elevated
levels "could be financially devastating to the regions
healthcare system" and are a major concern to health insurance
providers. Assume the standard deviation from the recent studies is
accurate and known. According to recent studies, cholesterol
levels in healthy adults from the area average about 205 mg/dL,
with a standard deviation of about 35 mg/dL, and are roughly
Normally distributed.If the cholesterol levels of a sample of 45
healthy adults from the region is taken, answer part c
(c) What is the probability that the mean cholesterol level of
the sample will be less than 195?

Added by Soledad K.

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