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The managers in a company's East and West regions were rated on the basis of the company's evaluation system. A researcher wishes to conduct a t-test of means to determine if there is a difference between the East and West regions. Perform this calculation.
Region Manager Rating Region Manager Rating
West 1 74 East 1 81
West 2 88 East 2 63
West 3 78 East 3 56
West 4 85 East 4 68
West 5 100 East 5 80
West 6 114 East 6 79
West 7 98 East 7 69
A video rental store has two video cameras available for customers to rent. Historically, demand for cameras has followed this distribution:
When coaching or training athletes, the tests employed to predict performance or determine training methods incorporate statistical methods. Why are these methods so effective?
Determine the percentage of households that have a credit card debt of more than $13,000.
Of the next 15 people that invest in this project, what is the probability that 5 or less people will result an annual net cash flow of at least $100,000.
Find out the value of test statistic utilizing one sample proportion testing. Use the subsequent information for the below questions.
The data are number of trials to learn to go left at the first turn in a maze for each of their 20 rats. Answer each of the four questions and don't forget to include a verbal statement of your interpretation of the outcomes.
How much time should the employer allow employees to finish the job? (Round up to the nearest minute).
Shows a sample mean of 1,261 with a standard deviation of 59. Should Pennsylvania adopt the new system for all toll roads in the state?
Test whether race and NATFAE are independent (α = 0.05). What do you conclude?
The New York Times reported (L.J> Flynn, Tax Surfing, The New York Times, March 25, 2002, p. C10) that the mean time to download the home page for the internal Revenue Service (IRS) , was 0.8 second. Suppose that the download time was normally di..
If a sample of 25 workers found that the average work week is 48 hours, conduct a hypothesis test to determine if there is significant evidence that the length of the average work week has increased? Use alpha=.05
Create a scenario where the binomial probability formula could be used to determine the probability of some number of successes, x, in some given number of trials,n.
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