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Mileage tests were conducted on a randomly selected sample of 100 newly developed automobile tires. The average tread wear was found to be 50,000 miles with a standard deviation of 3,500 miles. What is the best estimate of the average tread life in miles for the entire population of these tires?
1.a manufacturer receives parts from two suppliers. an srs of 400 parts from supplier 1 finds 20 defective. an srs of
What is the probability that the trainee class will consist entirely of men or women? Round your answer to the nearest thousandth.
A pair of dice is rolled. What is the probability of each of the following? (Round your answers to three decimal places.)
Withdrawals of $400 for 3 years. Find the balance of her account just after the last withdrawal (on february 1,2001)if the monthly interest rate is 6%.
What decision should be made regarding the null hypothesis?
Figure out the best means to calculate the reliabilty of our work load index ie a measure of work load per empolyee per hour - is there a statistical measurement i could use? i really need to verify the accuracy of this measurement.
How much production capacity should the manufacturer reserve for the last day?
Four research participants take a test of manual dexterity (high scores mean better dexterity) and an anxiety test (high scores mean more anxiety). The scores are as follows.
This company buys in equal volume from both suppliers, with half of the orders going to each supplier. What is the probability that a component to be installed is defective?
Determine the standard error of students that favoured the move.
Find the expected value or average profit per customer and determine how much profit they should expect if 10 people purchase one of their European vacation packages.
Conducts a study of 50 randomly selected seniors and finds the average debt is $2995, and the population standard deviation is $1100. With alpha = 0.05, is the student senate correct?
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