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Question 1: Why is an interval estimate for the population preferred to a point estimate?
Question 2: In real business practices, is information about the population mean available? Discuss
A random sample of five accidents resulted in the following number of persons injured: 18, 15, 12, 19, & 21. Using the .01 significance level, can we conclude the population mean is less than 20 for all accidents?
if the last digit of a weight measurement is equally likely to be any of the digits 0 through 9. round your answers to
1 a set of 50 data values has a mean of 15 and a variance of 25.nbsp find the standard score of a data value
Three children living, has assets of $156,000, has an index of health status of 141, and has 2.5 social activities a week on the average?
Use normal approximation to the binomial distribution to determine the answer if this probability cannot be determined explain why.
a company that manufactures video cameras produces a basic model and a deluxe model. over the past year 30 of the
Make a histogram showing the probabilties of r = 0, 1, 2, 3, 4, 5, 6, 7 or 8 defective syringes in a random sample of 8 syringes.
tim and elle visit a hospital where many people have the mumps. the probability that tim gets the mumps is .13 and the
A population of data from a paper supply company is known to have a mean weight of 55 ounces per ream and a population standard deviation of 5 ounces. The population is known to be bell shaped and symmetrical. Which of the following statements is ..
question a sample of 200 students in a stat class were asked how long did you sleep last night? the results are found
a distribution with a mean of u64 and a standard deviation of4 is being transformed inot a new standarized
A tailor makes wool tweed sport coats and wool slacks. He is able to get a shipment of 150 square yard of wool cloth from Scotland each month to make coats and slacks
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