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Question: For a population of 17 year old boys, the mean subscapular skinfold thickness is 9.7 mm and the standard deviation is 6.0 mm. What is the probability that the mean skinfold thickness for a simple random sample of 40 boys will be (a) greater than 11 mm?, (b) no more than 7.5 mm?, (c) between 7 and 10.5 mm?, (d) within 1 mm of the mean?
11 women and 9 men are the contestant in a competition. If 3 winners are ramdomly selected. what is the probability that they are all men?
Discuss an element of drinking water where you see a public health gap or need that should be addressed. You may bring up a specific case relevant to your community if you have one, or bring up a global issue.
MSA Computer Corporation manufactures two models of minicomputers, the Alpha 4 and Beta 5. The firm employs 5 technicians, working 160 hours each per month, on its assembly line.
the probability distribution of a discrete random variable x is given bypx -1 15 px 0 25 px 1 25 .a. compute
He would like to determine whether there are more units produced on the afternoon shift than on the day shift.
Given that 30% of US adults are smokers, find the average of the random variable X= # of smokers in a random sample of 50 residents of the USA, also find the variance and standard deviation of X.
discussion forum team as we continue to understand the power of economics in a global context evaluate the impact of
A mean of 22 miles-per-gallon and a standard deviation of 5 miles-per-gallon. What is the probability that a car will get less than 21 miles-per-gallon.
Write a statistical null and alternate hypothesis and draw a conclusion about the relative safety of the three types of seats.
What is the value of c for which there is 80% probability that a metal plate has a thickness with in the interval [4.3-c, 4.3+c]?
The consultant has offered to share their analysis with your company for a fee of $25.0 million. What is the Expected Value of Perfect Information in this scenario?
SAT scores are normally distributed with a mean of 500 and a standard deviation of 100. What percent of test takers score less than 300?
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