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Gravelle Meats is in the business of selling turkeys. The mean time it takes for an employee to a turkey for sale is 4 hours. This mean was determined from a sample of 30 employees and the sample had a standard deviation of 1 hour.
We wish to construct a 90% confidence interval for the population mean.
a) Calculate the confidence interval.
b) Roughly sketch the graph and indicate the interval
c) Suppose the owner claims that the population mean is actually 3hours. Is his claim reasonable? Why/why not?
suppose we wanted to compare the somatic complaints as shown on a scale known as pss of 3 groups of people non-smokers
Find the 95% confidence interval and one-sided p-value asked for in Exercise 13(e) and (g) but use a statistical computer package to do so.
a union shop clause in a contract requires every worker to join the union soon after starting to work for the company.
Suppose you know that I pick a box each time at random (probability 1/3 for each box). And suppose you adopt the strategy of guessing the box with highest.
four mutually exclusive events a b c and d have probabilities of 0.1 0.2 0.3 and 0.4 respectively. what are the
1) P(X>250) = answer should be 5 decimal places using NORMALCDF.
Sixteen percent of Americans do not have health insurance. Suppose a simple random sample of 500 Americans is obtained.
The health care system is not excluded from statistical manipulations. For instance referring back to the Veterans Affair (VA) scandal of 2014 .
find the value of the linear correlation coefficient r. x 22.6 36.6 15.6 35.0 47.5 y 7 6 6 2 6 a 0 b -0.478 c
What are the reasons why the methods used by eBay have been successful?
You are the lead consultant for the Excellent Consulting Group. It is mid-October. One of your top clients, Buddy's Floor Barn, has just closed the books for the first three quarters of the year (January through September). Buddy's Floor Barn request..
Suppose that the insurance company developed a new payment system in an effort to increase this percentage. A sample of 200 claims processed under this system revealed.
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