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Using the mean of 47.55 and standard deviation of 9.13 calculate the percentile of a raw score of 46.
Please include how to work out the problem.
If you are performing a hypothesis test using a z statistic in which you sampled 50 people and found an average SAT verbal score of 542 (assume we know the population mean to be 500 and the standard deviation to be 100)
in bernoulli trials p let vn be the number of trials required to produce either n successes or n failures whichever
Three consumers go to a Best Buy to shop for high- definition televisions (HDTVs). Let B indicate that one of the consumers buys an HDTV. Let D be that the consumer doesn't buy an HDTV. Assume these events are equally likely. Consider the followin..
NBC TV news, in a segment on the price of gasoline, reported last evening that the mean price nationwide is $1.50 per gallon for self-serve regular unleaded.
What is the probability that in your random sample of 50 students, between one thirds and two thirds favor the new policy?
consider you estimate the following regression model y alpha betax uwhere y is the dependent variable x is the
What should the rate of premium payment be on each policy, in order that there is a 95% chance that total premiums on all 100 policies will cover the total benefits on all policies? Use a normal approximation.
To reduce the standard deviation of the binomial distribution by half, what change must be made in the number of trials?
For a recent year, the mean fare to fly from Charlotte, North Carolina, to Seattle, Washington, on a discount ticket was $267. A random sample of round-trip discount fares on this route last month gives:
What is the next test that is performed to determine specifically which of the four groups are different - what statistical test should be used?
assume you are requested to survey middle-aged men in a particular neighborhood on their weights. you gather data from
A random sample of 1440 current job applicants results in 61 failures (based loosely on data from the American Management Association).
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