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A significance test is used to prevent a machine from under fulling or overfilling quart bottles. on the basis of a sample,the null hypothisis is rejected andthe machine is shut down for inspection. A thorough examination reveals there is nothing wrong with the filling machine.From a statistical standpoint,was there a type error made? If yes, which type? Explain?
After 1,000-trial simulation, examine statistical information generated and compare output of simulation with your findings in Problem .Briefly describe the significant similarities and differences.
Find the alternative would be chosen according to expected value and utility.
Supposing that the entire $10,000 can be spent on tires (ignoring other costs), and that the true fraction that will fail is approximately .05, can NHTSA attain its goal while staying within the budget? Describe.
what is the expected number of claims by males under 25? what is the standard deviation of the distribution. (How to show on excel using binodist formula).
Basic concepts. For each of the following, answer the question and give a short explanation of your reasoning.
If 37% of high school students said that they exercise regularly, find the probability that 5 randomly selected high school students will say that they exercise regularly.
If it rains in Greenville on Monday, there is a 80% chance that it will rain in NC that day. What is the probability it will rain in at least one of the above states.
A normal distribution with a mean time of 2:00pm and a standard deviation of 15 minutes. What is the probability that the mail will arrive later than 2:30pm?
The Wall Street Journal recently ran an article indicating differences in perception of sexual harrassment on the job between men and women.
Describe the distribution of the x-bars that you see in part b (shape of distribution, center, and the amount of dispersion).
Two fair six-sided dice are tossed independently. Let X be value of first die, and Y value of second. Find out the expectations of following random variables.
Determine the probability the transmission will break down between 100,000 and 200,000 miles?
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