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Based on the number of voids, a ferrite slab is classified as either high medium, or low. Historically, 5% of the slabs are classified as high, 85% as medium, and 10% as low.
A sample of 20 slabs is selected for testing. Let X, Y, and Z denote the number of slabs that are independently classified as high, medium, and low, respectively.
(a) What is the name and the values of the parameters of the joint probability distribution of X, Y, and Z?(b) What is the range of the joint probability distribution of X, Y, Z?(c) What is the name and the values of the parameters of the marginal probability distribution of X?(d) Determine E(X) and V(X).
Run a chi square goodness of fit using Type of Purchasing (PurType) as the variable with all categories equal and report the observed and expected values and the tests of statistical significance.
The Weithoff company has a contract to produce 10000 garden hoses for a customer. Weithoff has 4 different machines that can produce this kind of hose.
Determine the probability that the given class period runs greater than 50.75 minutes. Determine the probability of choosing the class period runs greater than 50.75 minutes.
The independent variable observed, and y, the independent variable predicted) and are assumed to be normally distributed with mean = 0 and 2 variance how good is the linear fit?
Calculate 95 percent and 99 percent confidence intervals for m. Using the 95 percent confidence interval, can we be 95 percent confident that m is at least 50 pounds? Explain.
Girls are needed to ensure that a 95% confidence interval estimate for the differncein mean BMI between boys and girls has a margin of error not exceeding 2 units?
At a factory that produces pistons for cars, Machine 1 produced satisfactory pistons and unsatisfactory pistons today
The mean salary, do you think introducing Michael Jordan's last annual salary of more than $30 million would skew this distribution?
Plot fitted values against residuals. Does this plot point out any problems with homoscedasticity?
Using the raw measurement data presented below, calculate the t value for independent groups to determine whether or not there exists a statistically significant difference between the salaries of female and male human resource managers.
suppose cracks exist in a certain material and the crack length in micrometers microm of a randomly selected crack is
Mike has est that the store sells about 800 SONY sets annually. Estimated holding cost is $30 per set and ordering cost is $20 per order. Describe the inventory pattern graphically.
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