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For a discrete probability function that is given as:
y 1 2 3 4 5 6 7P(Y=y) .01 .03 .13 .25 .39 .17 .02
a. What is the expected value E(Y)?
b. What is the standard deviation (σ) of the random variable Y?
Sampling distributions. Given a normal distribution with μ = 50 and standard deviation σ = 9, if a sample of n = 100 is selected.
Explain in words general pattern of correlation is statistically important.
The following payoff matrix has been developed for the decision problem. What is the opportunity loss when "A" is Investment alternative and "Decline" is state of nature?
Penultimate Support Systems makes fairly good speaker and equipment support stands for music groups. The assembly process involves two operations
Determine the probability the transmission will break down between 100,000 and 200,000 miles?
The heights of 40 randomly selected people and the heights of their mothers are recorded. Statdisk is used to run a linear correlation and regression analysis. The partial results are provided below:
Assume P1 and P2 move simultaneously. Represent this game in normal form.
Write introduction to SPC (STATISTICAL PROCESS CONTROL)? Describe the use of SPC tools used at D2D?
What are the theoretical parameters for the sampling distribution based on these 40 trains? Assume you are dealing with an infinite population of trains.
Interpret this data using regression and interpret all the findings, R 2 , F, IV coefficient, and the intercept.
Explain whether the authors used a population or a sample. Explain how this could have affected the results. If a sample was used, was it representative of the entire population? Why or why not?
What is the probability that 25% or fewer male employees will indicate that they have to pick up the slack for moms working flextime?
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