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In their advertisements, the manufacturers of a certain brand of oatmeal would like to claim that eating their oatmeal for breakfast daily will produce a mean decrease in cholesterol of more than 10 points in one month for people with cholesterol levels over 200. In order to determine if this is a valid claim, they hire an independent testing agency, which then selects 25 people with a cholesterol level over 200 to eat their oatmeal for breakfast daily for a month. The agency should be testing the null hypothesis H0: μ = 10 and the alternative hypothesis.
suppose 13 of american adults believe that the highest priority of america is to protect freedom of speech. we will
A sample of 400 individuals participated in the taste test and 80 indicated they like the taste. At a 5% significance level, test to determine if at least 22% of the population will like the new soft drink.
explain how measure of central tendency and measure of dispersion are complementary to each other to describe the
If 20 randomly selected pine trees are tested for infection by the pine beetle, what is the probability that fewer than 2 are infected by the pine beetle?
The times that a cashier spends processing each person's transaction are independent and identically distributed random variables with a mean of 1.5 minutes and standard deviation of 1 minute.
Dorsey Distributors has an annual demand for a metal detector of 1,400. The cost of a typical detector to Dorsey is $400.
why is the repeated measures anova usually a more sensitive test of the relationship between the independent and
Two boats the prada (Italy) and the oracle (USA) are competing for a spot in the upcoming Americans cup race. They race over a part of the course several times. Below are the sample times in minutes at the .05 significance level.
specifically 68 of gen y people have a say in computer purchases. suppose you select a sample of 100 gen y
if xsub1xsub2....xsubn constitute a random sample from a population with the mean mu and the variance use the methods
Explain the effect that changes in η and β have on the shape of the Weibull density and the effect that they have on γ3 and derive an expression for the coefficient of skewness for the Weibull distribution.
Medical Malpractice - An important issue facing Americans is the large number of medical malpractice lawsuits and the expenses that they generate.
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