8.In a certain city of several million people, 6.3% of the adults are unemployed. If a random sample of 230 adults in th
Posted: Sun Sep 05, 2021 5:18 pm
8.In a certain city of several million people, 6.3% of the
adults are unemployed. If a random sample of 230 adults in this
city is selected, approximate the probability that fewer than 11 in
the sample are unemployed. Use the normal approximation to the
binomial with a correction for continuity.
5. According to her doctor, Mrs. Chang's cholesterol level is
higher than only 5% of the females aged 50 and over. The
cholesterol levels among females aged 50 and over are approximately
normally distributed with a mean of 235 mgdL and a standard
deviation of 30mgdL. What is Mrs. Chang's cholesterol level? Carry
your intermediate computations to at least four decimal places.
Round your answer to one decimal place.
adults are unemployed. If a random sample of 230 adults in this
city is selected, approximate the probability that fewer than 11 in
the sample are unemployed. Use the normal approximation to the
binomial with a correction for continuity.
5. According to her doctor, Mrs. Chang's cholesterol level is
higher than only 5% of the females aged 50 and over. The
cholesterol levels among females aged 50 and over are approximately
normally distributed with a mean of 235 mgdL and a standard
deviation of 30mgdL. What is Mrs. Chang's cholesterol level? Carry
your intermediate computations to at least four decimal places.
Round your answer to one decimal place.