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The average number of pages in a novel is 326 with a standard deviation of 24 pages. If a sample of 50 novels is randomly chosen, what is the probability the average number of pages in these books is between 319 and 331?
if a researcher wishes to conduct a study about how much consumers in a target market segment intend to spend on a type
A manufacturer claims that the life span of its tires is 49,000 miles. You work for a consumer protection agency and you are testing these tires. Assume the life spans of the tires are normally distributed. You select 100 tires at random and test ..
a distribution center receives shipments of a product from three different factories in the quantities of 6040 and 20.
starting on day 1 you buy one lottery ticket each day. each ticket is a winner with probability 0.1. find the pmf of k
There are 4 cans of diet soda (D) were placed in a 36 pack of regular soda (R). Suppose that two cans are randomly selected from the 36-pack. (a) Determine the probability that both contain diet soda and
Suppose that X1, X2, . . .is a sequence of random variables with E(Xt2) 8 and E(Xt)=µ. a. If X1, X2, . . .is iid with E(Xi2) 8 and EXi=µ, where µis known, whatis the minimum mean squared error predictor of Xn+1in terms of X1, . . . , Xn?
Make a graph for the data set. Use the five steps of hypothesis testing (report results in APA format). Figure the effect size of this study. Conduct a planned contrast for Baseball versus Football players (using Tukey's HSD).
the chapin social insight test evaluates how accurately the subject appraises other people. in the reference
promising results from a specialty catalog surveythe preliminary survey results just came back on thespecialty catalog
Find the mean and standard deviation of the point spread (Steelers points minus their opponent's points) in the Steelers game.
A watching more than 30 hours of TV per week, and P2 = proportion of junior high students in region B watching more than 30 hours of TV per week, and Is there enough evidence at alpha = 0.01 to conclude that p1 watch more than 30 hours of TV per w..
A physician's health study of the effectiveness of aspirin in the reduction of heart attacks was begun in 1982 and completed in 1987. Of 11,037 male medical doctors in the United States who took one 325 mg buffered aspirin tablet every other day
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