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The Cooper Auto Repair Center has just received a shipment of 1,000 spark plugs from a supplier. In past shipments, the gap in 6% of the spark plugs obtained from the supplier has been set incorrectly.
A) In the new supply, what is the expected number of misgapped plugs?
B) What is the probability that there will be 50 or fewer misgapped plugs?
C) What is the probability that there will be 74 or more misgapped plugs?
The standard deviation of the population is 200. Which of the following is the 90% confidence interval for the mean number of apples for all trees?
Using a sample of size n=120, what is the standad deviation of our estimator P? What is the probability that the sample proportion will be at least 0.45?"
A sample of 50 retirees is drawn at random from a normal population whose mean age and standard deviation are 75 and 6 years, respectively.
What should the average weight be if the production manager wants no more than 6% of the products to weigh more than 7.4 ounces?
SCCoast, an Internet provider, developed the following frequency distribution on the age of Internet users. Find the mean, median, and the standard deviation.
What is the probability that 25% or fewer male employees will indicate that they have to pick up the slack for moms working flextime?
a penny collection contains twelve 1967 pennies seven 1968 pennies and eleven 1971 pennies. if you are to pick some
Suggest applications of nonparametric methods to solving business related problems. Describe the example. How are you or could you use nonparametric methods to solve business related problems?
Do you believe the results of the simulation correspond to the best policy? What is the expected number of times you would win the car using the two strategies? Does the simulation back this up?
one environmental group did a study of recycling habits in a california community. it found that 73 of the aluminum
Find a 95% confidence interval for the proportion p of the inner-city, working-class group who eventually became alcoholics.
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