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The P-value for an analysis of variance F test statistic is which probability from the F distribution?
a. left-tail
b. either right-tail, left-tail, or two-tail
c. either right-tail or left-tail
d. two-tail
e. right-tail
Suppose the pollster has no prior information about the proportions. If equal numbers of men and women are to be polled, how large should the sample sizes be?
There is a program for STD/HIV/pregnancy education/prevention called Postponing Sexual Involvement (PSI) run in Atlanta. Evaluation data collected at the end of ninth grade as a follow-up to the program compared two group of adolescents
In a clinical study of an allergy drug, 115 of the 204 subjects reported experiencing significant relief from their symptoms. At the 0.01 significance level, test the claim that more than half of all those using the drug experience relief.
a simple random sample of size n is drawn from a population that is normally distributed. the sample mean x-bar is is
The acceptance rate for applicants with similar qualifications is 30% for University X and 55% for University Y. What is the probability that Jim will be accepted by at least one of the two universities?
the mass of a species of shrew is approximately normally distributed with a mean of 10 grams and a standard deviation
1. beechwood specialty electronics has just leased space for a store in the crestview hills towne center that will
Assume 41% of all American adults have some college education. American adult is randomly selected. Determine the probability that adult owns stock or has some college education?
Fawns Fawns among1 or 5 months old in Mesa Verde National Park have a body weight that is approximately normally distributed with mean
Let X be the number of tumors in a fish living in a river. Suppose that it has the following probability mass function f(0) = 0.9 f(1) = 0.7 f(2) = 0.02 f(3) = 0.01 A random sample of size n = 30 is selected from this population. Approximate the p..
a system consists of three components that operate independently. in order for the system to work component 1 must work
several psychology students are unprepared for a surprise truefalse test with 11 questions and all of their answers or
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