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Problem: The time sent waiting in the line is approximately normally distributed. The mean waiting time is 4 minutes and the standard deviation of the waiting time is 2 minutes. Find the probability that a person will wait more than 6 minutes. round your answer to four decimal places.
Determine the distributions given below represent a probability distribution. Justify your answer.
The diameter of a tube has a normal distribution with a measure of .4 inches and a standard deviation of .04. What is the probability that the diameter is between .34 inches and .38 inches?
What is the 99% confidence interval for the average amount of time all web customers of her company will spend visiting the new website?
Suppose that you borrow ?$10,000 for five years at 6?% toward the purchase of a car. Find the monthly payments and the total interest for the amortized loan.
a statewide real estate agency farm associates specializes in selling farm property in the state of nebraska. its
B. Find the critical value(s) and identify the rejection region(s). C. Find the standardized test statistic
A fireworks show is designed so that the time between fireworks is between one and five seconds, and follows a uniform distribution. a. Find the average time between fireworks.
use a significance level of 0.01 to test the claim that p1 p2. use the given sample sizes and numbers of success to
Physical Sciences According to the U.S. National Weather Service, at any given moment of any day, approximately 2000 thunderstorms are occurring worldwide.
A study by Peter D. Hart Research Associates for the Nasdaq Stock Market revealed that 43% of all American adults are stockholders.
Assume that the following four examines were tested as part of a large group that had a normally curved distribution.
Suppose you have a confidence interval based on a sample of size n. Using the same level of confidence, how large a sample is required to produce an interval.
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