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A machine is set to pump water into a pool at the rate of 10 gallons per minute. Upon inspection, it is learned that the machine actually pumps water at a rate described by the uniform distribution over the interval 8.5 to 12.5 gallons per minute. Find the probability that between 10.5 gallons and 11.5 gallons are pumped during a randomly selected minute.
They decide to sample some fast-food restaurants currently operating to estimate the monthly cost of electricity. They want to be 90% confident of their results and want the error of the interval estimate to be no more than $100.
question how does horsepower and weight affect the mileage of family sedans?nbsp data from a sample of twenty 2010
1. create the data set.a. using the activity 6a.sav file as a starting point create a new dataset that you can use with
What are the estimated monthly sales for a particular region with a population of 796,000, per capita income of $6,940, and an unemployment rate of 6.0 percent?
The z-score of 1.33 tells you that Eric's time to get to work is 1.33 standard deviations from the mean.
q1 both undergraduates and postgraduates can use the university cafeteria. each diner can choose between buying a meal
If the probability of a newborn child being female is 0.5, find the probability that in 100 births, 55 or more will be female. Use the normal distribution to approximate the binomial distribution.
Based on surveys conducted in 1989 and 1999, a researcher compared the proportion of high school age females interested in a career in science in 1989 with the proportion in 1999. He concluded that the proportions were not significantly different ..
the director of an advertising agency is concerned with the effectiveness of a television commercial.what null
What is the appropriate procedure to test for a significant difference in means between the two groups? Implement the procedure in problem using the critical value method
Forty percent of the time, sales are more than 470,000 and 10 percent of the time, sales are more than 500,000. What is the mean and standard deviation of the distribution?
Make any necessary corrections to your work based on facilitator's feedback and write: A paragraph describing the dependent variables of interest and children's anxiety as measured by the RCMAS.
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