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According to a survey, the mean serum cholesterol level for US adults was 197.5, with a standard deviation of 41.7. A simple random sample of 92 adults is chosen. Find the 42 percentile for the sample mean. Round to one decimal place.
At a particular location on a river the number of fish caught per man-hour of fishing effort has a Poisson distribution with ?= 1.3 fish per man hour. Find the following probabilities:
A particle P, which can slide freely on the wire, is released from rest at the point (a, 0, 2πb). Find the speed of P when it reaches the point (a, 0, 0) and the time taken for it to do so.
determine the selling price pv per 1000 maturity value of the bond. hint assume twice-yearly interest payments. round
Calculate 95 percent and 99 percent confidence intervals for u(mean). Using the 99 percent confidence interval, can we be 99 percent confident that u(mean) is at least 42? Explain.
The standard deviation of the scores is probably close to the value 0.78 for the adult male population. How large an SRS of hotel managers do you need?
what are the components of a decision tree? explain each briefly.please answer in at least 3 sentences but no more than
suppose that the average weekly earnings for employees in general automotive repair shops is 450 and that the standard
At the 0.05 level, test whether the population percentages could be the same for students from these four colleges within the university.
explain what problems arise in trying to make conclusions based on a survey mailed to the subscribers of a specialty
a nutritionist wants to determine how much time nationally people spend eating and drinking. suppose for a random
Find the probability that he will answer all 10 questions correctly.
(a) How many ways are there to grab any 5 eggs out of the 12? (b) How many ways are there to grab exactly 1 broken egg and 4 whole eggs? (c) What is the probability of grabbing exactly 1 broken egg and 4 whole eggs?
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