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If the average price of a new home is $400,000, find the maximum and minimum prices of the houses a contractor will build to include the middle 65% of the market. Assume a normal distribution and a standard deviation of $40,000.
Construct a 99% confidence interval for the population mean tread wear for this type of tire.
Determine the probability that computer will fail within 12 months?
Must the company replace old truck? If so which of new trunks must they use? Describe in detail.
The weight of the oranges, in pounds (1 pound = 16 ounces) is a random variable with standard deviation
Use α =.01 and test for a significant difference. What is your conclusion?
Once again, suppose that the standard deviation of the average or median is $5.00. Which is the probability that the average or median of the sample is greater than $22.50 but less than $25.00?
You find that a random sample of five microwave ovens has a mean repair cost of $75 and a standard deviation of $12.50. At α = 0.01, do you have enough evidence to support the repairer's claim?
Find the probability that in a given year,a) Exactly one major hurricane will strike the U.S. mainland
Describe what you find then produce an ANOVA for the problem.
If is the proportion of the next 100 shoppers that buy a packet of the crackers after tasting a free sample, then the probability that fewer than 30% buy a packet after tasting a free sample is approximately.
What will be critical value of chi-square if test is to be performed at 0.025 level? At the 0.05 level?
Shopper Trak is a hidden electric eye designed to count the number of shoppers entering a store. When two shoppers enter the store together one walking in front of the other, the following possibilities apply.
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