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Q1) Serum cholesterol levels in men aged 18-24 are normally distributed with mean of 178.1 and the standard deviation of 40.7. Units are mg/100 mL, and data are based on National Health Survey.
a) If 25 men aged 18-24 are arbitrarily chosen, determine probability that their mean serum cholesterol level is between 165 and 200.
b) Local hospital would wishes to establish criterion for recommending dietary changes if cholesterol levels are in top 5%. Determine the cutoff serum cholesterol for men aged 18-24?
It is better to use the median rather than the mean for a distribution when:
Based on the result, does there to be an overall perception of 1 minute that is reasonably accurate?
Mean threshold values and standard deviations for the three groups are given below. Normal probability plots showed the three populations were well approximated by the Normal distribution.
If a technical breakthrough occurred that raised the profit per unit of X 1 to $3, would this affect the optimal solution?
Find the probability of winning jackpot?
All but one of the following statements contain a blunder. Which one does not contain a blunder
The margin of error for a 95% confidence interval estimate for the proportion of all students with cell phones is
These can have a large impact on tenure and promotion decisions at many institutions. One particular instructor had ratings in 3 courses in one semester as given by the table below for the statement "The instructor is an excellent teacher.
Compute the probability that student eats at fast food restaurant 2 or more times per week?
Could mud-wrestling be the cause of a rash contracted by University of Washington students in the spring of 1992? Two physicians at the University of Washington health center wondered this when one male and six female students complained of rashes..
Assuming the nurses surveyed were a simple random sample from the population of all nurses in the United States, find the appropriate null hypothesis for these data
A simple random sample of 1000 Americans found that 61% were satisfied with the service provided by the dealer from which they bought their car.
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