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1. Discuss the advantages and disadvantages of using a successive independent samples survey design versus a longitudinal design to measure changes in people's attitudes over time.
2. Suppose that you wanted to obtain a simple random sample of kindergarten children in your state. How might you do it?
suppose that a car rental agency offers insurance for a week that will cost 10 per day. a minor fender bender will cost
A contractor is considering a sale that promises a profit of $31,000 with a probability of 0.7 or a loss (due to bad weather, strikes, and such) of $13,000 with a probability of 0.3. What is the expected profit?
Farmers have always had plenty of data but few tools to help them analyze the data. For example, they receive data from their feeding machines as well as reports on health status, reproductive status, and milk production from their veterinarians. ..
a utility company serves 50000 households. as part of a survey of customer attitudes they take a simple random sample
it is known that 800 patients received a certain drug and 75 of them reported and adverse event. construct a 99
Eddie's Bicycle Shop has a thriving business repairing bicycles. Trisha runs the reception area where customers check in their bicycles to be repaired and then later pick up their bicycles and pay their bills.
a researcher conducted a study on the effects of stress on migraines. the researcher computed the number of migraines
After hearing about your decision-analysis course, he asks you whether you have learned anything that might help him in his decision. What kinds of is sues are important in deciding whether to buy a retail business? Describe how he might use sensi..
find the critical value. assume that the test is two-tailed and that n denotes the number of pairs of data. n 7 a
The average birth weight of domestic cats is about 3 ounces. Assume that the distribution of birth weights is Normal with a standard deviation .4 ounces.
1. Assume that a random variable is normally distributed with a mean of 1,500 and a variance of 324. a. What is the probability that a randomly selected value will be greater than 1,550?
Johnson (1973) studied several different managerial aspects of university associated schools of nursing. Among the data she collected were the "extent of agreement (between the dean and the faculty) on the responsibilities for decision making" and..
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