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A regression model to predict Y, the state-by-state 2005 burglary crime rate per 100,000 people, used the following four state predictors: X1 = median age in 2005, X2 = number of 2005 bank- ruptcies per 1,000 people, X3= 2004 federal expenditures per capita, and X4= 2005 high school graduation percentage. (a) Write the fitted regression equation. (b) Interpret each coefficient.
(c) Would the intercept seem to have meaning in this regression? (d) Make a prediction for Burglary when X1 = 35 years, X2 = 7.0 bankruptcies per 1,000, X3 = $6,000, and X4= 80 percent. Burglary
What is the probability that a randomly selected incoming fastener will pass inspection either initially or after recrimping? Given that a fastener passed inspection, what is the probability that it passed the initial inspection and did not need re..
Suppose that a guest claims that she played the slot machine 5 times and hit the jackpot twice. Find the probability of exactly 2 jackpots in 5 trials.
Construct a 95% confidence interval for the proportion of individuals in the target market segment who are aware of the firm's new brand. If you use Excel and/or StatTools, please specify any functions you use and all the inputs.
locate a news article or report in a popular news source such as time newsweek or the wall street journal in which a
determine a 95 confidence estimate for the mean time between failures mtbf of a power supply. we have 200000 hours
Natural Science, 415; Social Science, 511; Business Administration, 619; Philosophy, 196. Create a Pareto chart representing this information.
a random sample of 100 foxes was examined by a team of veterinarians to determine the prevalence of a particular type
Find the probability that fewer than 7 are satisfied. c) Find the probability that 8 or more are satisfied. d) Find the probability that between 4 and 7 are satisfied with the airline.
a sample proportion is calculated from a sample size of 201. how large of a sample would we need to decrease the
Use the p-value approach and test to determine if the average yearly income of marketing managers in the East is significantly different from the West.
Researchers examining the effectiveness of a short course that teaches diabetic self-care. What test should be used? Set up a null and alternative hypotheses. Provide a result of chosen test and p-value
Use Chebyshev’s Inequality to solve this problem. Show your work. A machine used to fill cereal boxes dispenses on average µ ounces per box. The manufacturer wants the actual amount dispensed, Y , to be within 1 ounce of µ at least %93 of the time. W..
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