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Question: A battery manufacturer looks at samples of 30 batteries at the end of every day of production and notes the number of defective batteries.
Results are 1, 1, 0, 0, 1, 2, 0, 1, 0, 0, 2, 5, 0, 1.
Is the production process under control?
Produce a relative frequency histogram for this data. Does it seem plausible the data come from a population that has an exponential distribution?
Of 346 vending machines tested, 12 are found to be defective. Construct the 98 % confidence interval for the proportion of all defective vending machines.
Given a binomial distribution with n=29 and p=0.83, would the normal distribution provide a reasonable approximation? Why or why not.
a sample of 250 observations is selected from a normal population for which the population standard deviation is known
Prove that Kendall's coefficient of concondance (Eq. 8.6) is given by
What percentage of the checkout times was at least 3 minutes? In what class interval must the median lie? Explain your answer.
consider a hypothesis test on a mean of a normally distributed population where the hypothesis are h0 mean10. h1 mean
Web-based exercise. Willie Mays is fourth on the career home run list, behind Barry Bonds, Hank Aaron, and Babe Ruth. You can find Willie Mays's home run.
count the number of sequences of 5 as 6 bs and 7 cs in which the first a occurs somewhere before the first
Calculate the sample mean, median, range, sample variance and sample standard deviation only for each of the four variables and explain what each value tells us about the motion picture industry.
Choose a construct you would like to measure. Create an operational definition of your construct using at least three peer-reviewed journal articles as references.
How would I go about finding the probabilities for the following discrete random variables? Among a shipment of 5,000 tires, 1,000 are slightly blemished. If one purchases 10 of these tires, what is the probability that 3 or less (P (x
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