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A certain electrical appliance is sold with a 5-year guarantee. This provides that the full purchase price is refunded if the product fails within 2 years, and half of the purchase price is refunded if the product fails in the following 3 years. A study shows that out of a typical batch of 100 items, there will be 2 failures in the first year, 3 failures in the second year and 4 failures per year after that. Assuming that interest is a constant 5% and that reimbursement is made at the end of the year of failure, what is the cost of this guarantee to the manufacturer, as a percentage of the purchase price?
In terms of p , the researcher should test which of the following null and alternative hypotheses?
Here are data on attitudes toward coffee filters made of recycled paper. The data was gathered from a random sample. What is the conditional distribution of opinion about quality of recycled coffee filters for buyers?
Determine regression line for predicting January temperature from latitude.
Assume a mean wage of $1,000 and standard deviation of $100. What's the probability of finding an employee with a wage of between $790 and $1000?
Develop forecasts for the years 6 through 13 using a 5-year moving average and Weight the most recent year by 6, the previous year by 4, the year before that by 2, and the other years by 1.
The metropolitan area of Los Angeles-Long Beach, California, showed the largest increase in the number of jobs between 1983 and 2009. The number of jobs increased from 5,167,500 to 6,295,000. What was the geometric mean expected yearly rate of..
multiple choice question based on multiple regression.below you are given a partial minitab output based on a sample of
If possible, determine a 95% confidence interval for average number of television sets in all 50,000 households. If this is not possible, describe why not.
Misery loves company. It is time for the PE (professional engineer's exam). The results of the national test were normally distributed around the mean score of 70.
norfisk oil is drilling some exploratory wells on the mainland of norway. the results are described as either a
find the value ofnbspznbspthat would be used to test the difference between the proportions given the following. use g
in a chemical experiment a solution is to be kept at 70 degrees celsius. at a randomly selected time the actual
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