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The mean of a normal probability distribution is 60; the standard deviation is 5.
a. About what percent of the observations lie between 55 and 65?
b. About what percent of the observations lie between 50 and 70?
c. About what percent of the observations lie between 45 and 75?
Compute the mean of the sampling distribution? Compute the standard deviation of sampling distribution?
What are the minimum and maximum heights it should use as a basis for its design?
The population of lengths of aluminium coated steel sheets is normally distributed with a mean of 30.05 inches and a standard deviation of 0.20 inches. A sample of four metal sheets is randomly selected from a batch. What is the possibility that t..
Findout probabilities utilizing standard normal distribution. If the debt is normally distributed with a standard deviation.
Construct a 90 percent confidence interval for the proportion of all kernels that would not pop.
Public transportation and the automobile are two methods an employee can use to get to work each day. Samples of times recorded for each method are shown. Times are in minutes.
Santa Fe black on white is a style of pottery that occurs in about 61% of the pot shards found in the Bandelier National Monument area.
Determine the 90% confidence interval for average days worked by employees in all payroll departments?
Write the hypothesis statement. What distribution are you using?
Questions based on binomial distribution, variance of the binomial distribution, discrete random variable and continuous random variables.
What the information do z-scores give that actual heights do no?
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