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You are given the following information obtained from a sample of 5 observations taken from a population that has a normal distribution.
94 72 93 54 77
Develop a 98% confidence interval estimate for the mean of the population.
If an employee is selected at random, what is the probablity that the employee is female or works as a member of admin?
Can we reject the hypotesis that the birthays are equally during each season of the year? use the 0.10 level of significance
Precisely (i.e., using specific numbers) what does central limit theorem tell us about sampling distribution of sample means for samples of this size from this population?
Develop a regression model that would predict the DJIA based on the S&P 500 index. Based on this model, what would you expect the DJIA to be when the S&P is 1,100? What is the correlation coefficient (r) between the twomarkets?
What is the probability that the trainee class will consist entirely of men or women? Round your answer to the nearest thousandth.
suppose that the number of flaws in a certain type of magnetic tape is on average three per 500ft. assuming a poisson
Find all critical points of f (x) and classify them as maximums or minimums. State the intervals where f (x) is increasing and decreasing.
A sales manager wants to know if the sales productivity of her east region is greater than the sales productivity of her west region
Tthe mean amount of paint per 1-gallon can is 1.00 gallons. Use a significance level of 0.05. Is (are) the critical region(s) for this test in the left tail, right tail, or both tails?
Standard deviation of 10 pounds.. Find the probability, P(W
The accuracy of the scanner price of each. Let x represent the number of the five items that is priced incorrectly. Use the information in the FTC study to estimate p for the binomial experiment.
What is the 95% confidence interval for the standard deviation of birth weights at County General Hospital, if the standard deviation of the last 25 babies born there was 1.1 pounds.
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