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Suppose that the specifications on the diameter of a rotor shaft are 0.25±0.002. If the diameters are distributed normally with mean μ=0.251 and standard deviation σ=0.001, what percentage of them are within specifications?
Determine the probability of fatal accident over a lifetime? Describe your reasoning carefully. Hint: Suppose independent events. Why might the supposition of independence be violated?
The national average SAT score is 1019. If we assume a normal distribution with σ = 90, what is the 90th percentile score? What is the probability that a randomly selected score exceeds 1200?
If you choose 12 vehicles at random, what is the probability that more than half(that is, 7 or more) carry just one person?)create a probability distribution table and a cumulative distribution.
If the maximum error of estimate for the proportion of bartenders hearing job complaints is 4.4 percentage points, what is the degree of confidence used?
What percentage of the averages or medians of the sample will be greater than 140 seconds?
Find the probability and mean and standard deviation for given data under Binomial distribution.
Use an appropriate graph to compare the distribution of systolic BP for 50-54 year olds with that for 60-64 year olds. Label the axes correctly, include unit of measure and provide an appropriate title. Include your name in the title of your graph. B..
a prestigious university requires a score of at least 750 on a graduate exam for admission to its mba program. suppose
What is the likelihood the sample mean is greater than $22.50 but less than $25.00?
What is the probability that the difference between the sample mean and the population mean is less than 0.01? 5. What is the likelihood the sample mean is greater than $ 3.87?
Call centers typically have high turnover. The director of human resources for a large bank has compiled data on about 70 former employees at one of the bank's call centers in the Excel file Call Center Data.
the weekly salaries of teachers in one state are normally distributed with the mean of 490 and a standard deviation of
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