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Examine the hospital database. Suppose you want to “prove” that the average hospital in the United States averages more than 700 births per year. Use the hospital database as your sample and test this hypothesis. Let alpha be .01. On average, do hospitals in the United States employ fewer than 900 per- sonnel? Use the hospital database as your sample and an alpha of .10 to test this figure as the alternative hypothesis. Assume that the number of births and number of employees in the hospitals are normally distributed in the population.
Two-sample T for side_sideAge_Group N Mean StDev SE Meanelderly 9 22.2 10.3 3.4young 8 15.13 3.91 1.4Difference = mu (elderly) - mu (young)Estimate for difference: 7.1095% CI for difference: (-1.13, 15.32)T-Test of difference = 0 (vs not =): T..
The probability that an appliance is in repair
In the past, the average age of employees of a large corporation has been 40 years. Recently, the company has been hiring older individuals. In order to determine whether there has been an increase in the average age of all the employees, a sample of..
The owner of a fish market has an assistant who has determined that the weights of catfish are normally distributed, with mean of 3.2 pounds and standard deviation of 0.8 pound. What percentage of samples of 4 fish will have sample means between 3.0 ..
Investing in U.S. Treasury notes (T-notes) can produce interest income. However, investors can face risk of capital losses when selling Treasury securities because of changing market interest rates over time. The following contains some weekly ..
A particular department store knows from past experience that 17% of their customers have the store's credit card. What is the probability that out of the next 120 customers that at least 15% have the store's credit card? (please express your answer ..
What proportion of customers say that they will return and rate the restaurant's food as good?
3. hypothesis testing 15 marks should the cbc hire celebrities for their movies? to answer this question run a
Construct the product structure tree for the coffee table and all of the items required to construct the table - complete the MRP for the coffee table and all of the items required to construct the table.
If the probability that you will correctly reject a false null hypothesis is 0.85 at 0.01 significance level, α is______________ and β is______________.
As part of an assessment for navigation, a professor has his students take a written test. He teaches two sections of the class. The variance and standard deviations for test 1 and test 2 scores are shown below. What do the results say about the rela..
The last passenger ends up on his own seat?
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