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Suppose 1,568 of 2,033 registered voters sampled said they planned to vote for the Republican candidate for president. Using the 0.95 degree of confidence, what is the interval estimate for the population proportion (to the nearest tenth of a percent)?
A. 75.6% to 78.7%
B. 75.9% to 78.3%
C. 75.3% to 79.0%
D. 76.4% to 79.9%
On a recent prostate cancer screening test, Dale received positive results. It is known that this typescreening test will show 99% positive for people who have cancer
in a study conducted by ucla it was found that 30 of college freshmen support increased military spending. if 12
What is a p-value in testing hypothesis? How does this p-value help us to decide to/not to reject a Null hypothesis? What might happen if we do not use this p-value in particular, when we are rejecting a Null hypothesis?
What sample size would be needed to estimate the true proportion of students at your college
What is the probability that the mean price for a sample of 30 service stations is within $.03 of the population mean (to 4 decimals)?
study the following minitab output from a regression analysis to predict y from x.a. what is the equation of the
A multiple choice test with 50 questions is given. Each question has four choices. What is the student's probability of passing if passing is at least 60% correct?
A jar contains marbles of different colors: 4 white, 6 black, 6 red, and 4 blue. On two random drawings, without replacement, find the probability that the first is black and the second is white.
question a research study performed at checkout lines at publix supermarket in south florida revealed that between 4pm
The events A and B are independent, mutually exclusive or both. If two events A and B are mutually exclusive (A B = ), then they cannot be independent if P(A) > 0 and P(B) > 0. Why?
let x1...x25 be a random sample from a normal distribution with mean mu and variance 100. the null hypothesis h0 mu50
Employees of a local company are classified according to gender and job type. The following table summarizes the number of people in each job category.
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