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The House Ways and Means Committee is considering lowering airline taxes. The committee has 38 members and needs a simple majority to pass the new legislation. If the probability that each member votes yes is 0.25, find the probability that the legislation will pass. (Assume independence.)
Given that taxes are reduced, the probability that Northwest Airlines will compete successfully is 0.7. If the resolution does not pass, Northwest cannot compete successfully. Find the probability that Northwest can compete successfully.
Provide an example and state the Null and the Alternative hypothesis for the example in symbolic form.
the number of o-ring failures for the first 23 flights of the us space shuttle challenger were0 1 0 na 0 0 0 0 0 1 1 1
find the area under the normal curve between 0.9 standard deviations on both sides of the
What are the appropriate H0 and Ha for each of the following research studies? In addition, note whether the hypothesis test is one- or two-tailed.
a web site rated 100 colleges and ranked the colleges from 1 to 100 with a rank of 1 being the best. each college was
Based on observations of a few third graders in the lunch line, they assess P(P) as 0.75. More convincing evidence that P(P) is .75 would be?
In the sample of 400 households, 112 were watching the series. At the 5% significance level, would the series be judged successful on basis of this sample information?
According to the Wall Street Journal , an average of 44 tons of carbon dioxide will be saved per year if new, more efficient lamps are used.
information about a regression analysis includes an intercept of 5.99 and a slope of 0. make a prediction of y based on
one thousand raffle tickets are sold for 2.00 each. one grand prize of 800 and two consolation prizes of 100 each will
suppose that the probability that a child living in an urban area is the us is obese is 20. a social worker sees 15
Determine the probability that a patient will make it through 600 days without a recurrence and sketch the Cauchy probability density function. sod show that that f(z) is symmetric about x 0.
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