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Which of the following would produce a standard error of 2 points? Explain your response.
n = 25 scores from a population with s = 50
n = 25 scores from a population with s = 20
n = 25 scores from a population with s = 10
n = 25 scores from a population with s = 12.5
What is the probability that a randomly selected vehicle's VMD will lie between 60,000 and 100,000 miles since its previous crash?
A population has a mean of mu = 30 and a dtadard deviation of 5. if 5 points were added to every score in the population, what would be the new values for the mean and standard deviation?
More than 5 percentage points in either direction from what would have been got by interviewing all voters in United States." Determine sample size suggested by this statement.
A simple random sample of 30 repairs made by this company is taken. The sample average is $97, and the SD is $17. Assume that the repair cost has a normal curve.
Illustrate the maximum number of reservations that it could accept for a flight with a capacity of 160, if it needs the probability of accommodating all reservation holders to be at least 95%.
Assembly line from which to observe the work habits of the workers on the line. what is the probability that the point she selects within 25 feet of the end of the line?
Let X be the number of yes votes obtained from a random sample of 200 out of the entire voting population. What is the expected value of X if, in fact, 65% of all voters supported the dictator?
Sample standard deviation of 1.1%. Using alpha = 0.05, does the analyst have statistical evidence to reject the claim made by the magazine?
a candy company distributes boxes of chocolates with a mixture of creams toffees and cordials. suppose that the weight
the number of automobiles that arrive at a certain intersection per minute has a poisson distribution with a mean of 5.
1.a company makes molded plastic toys. they study the plastic injection process into the molds. a common cause of
impurities in the batch of final product of a chemical process often reflect a serious problem. from considerable plant
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