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Should that tragedy happen, the company will have to pay $15000. The company charges my father $1000 for the insurance policy. What is the expected value of this policy to my father?
a company has observed that there is a linear relationship between indirect labor expense ile in dollars and direct
suppose that the random variable x is the time taken by a garage to service a car. these times are distributed between
Using α = .05, test to see whether the mean round-trip discount fare has increase in March. What is your conclusion? What is the p-value?
Survey of 8000 women, 5431 say they change their nail polish once a week. construct a 95% confidence interval for the population proportion of women who change their nail polish once a week.
todd holland from new york grows pumpkins. he studied his past records carefully and concluded that the weights of his
Formulate and solve a linear optimization model using the auxiliary variable cells method and write a short memo to the production manager explaining the sensitivity information.
Use a 0.05 significance level to test the claim that unfiltered king-size cigarettes have a mean tar content greater than that of filtered 100 mm cigarettes.
The manufacturer of the X-15 steel-belted radial truck tire claims that the mean mileage the tire can be driven before the tread wears out is 60,000 miles. The standard deviation of the mileage is 5,000 miles.
Can the college conclude that the students in the new program are significantly different from the freshman class? Use a two-tailed test with an alpha level of .05?
the average on an exam is 75 and the standard deviation is 17. if the instructor assigned grades based on the normal
A promotion campaign is being planned to encourage people to reduce heat in their houses at night. In order to measure the campaign's impact, we want to determine the proportion of people who reduce their heat at night.
What is the relationship between exam anxiety and exam performance for students? What is the relationship between gender and exam performance for students?
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