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Psychologist is interested in studying women who are in the process of obtaining a divorce to determine whether there are significant attitudinal changes after the divorce has been finalized. Existing records from the geographic area in question show that 798 couples have recently filed for divorce. Assume a sample of 25 women is needed for the study. What type/s of method/s of random selection can you use to determine which women should be asked to participate in the study?
Create a bell curve chart that shows the number of men needed per day for a 10,000 man hour job. The start date is 1/1/2008 and the end date is 6/1/2008.
Is the school district correct in assuming the girls are equal in performance to boys. They are 95% sure their assumption is correct.
Using the probability formulas, find the proportion of employees who either have MBAs or are managers.
Identify a business research issue, problem, or opportunity facing your organization that can be examined using Hypothesis Testing. Describe the results of a hypothesis test on your selected research issue, problem, or opportunity.
All subjects in the study were questioned about lifestyle factors including alcohol, tea, and coffee consumption. The resulting data are as follows.
A textile manufacturer estimates that it produces bolts of cloth with flaws following a Poisson distribution that has an average of one flaw per 200 feet of cloth.
A Manager needs to decide between two machines to put into market following a Weibull distribution. Machine X test unit cost $3000 with beta=3 and theta=500 Machine Y test unit cost $2000 with beta=3 and theta=400
M&M Confidence Interval regarding the count of each color of M&M contained in a "fun size" bag of M&Ms for hypothesis testing. Use the traditional hypothesis testing method,
determine if the improvement is of practical significance one should. Crop researchers plant 100 plots with a new variety of corn. The average yield for these plots is x' = 130 bushels per acre
Findout the probability value for normal distribution. Illustrate the weight of football players is normally distributed with a mean of 200 pounds also a standard deviation of 25 pounds.
At the 0.05 level of significance, is there evidence to suggest that the population mean waiting time to check out is less than 10.73 minutes?
let Xn be number of people selected until first person with non-blue eyes shows up, and let X be number of people select until first person with different eye color to preceding people shows up. Find out E(Xb), E(Xn) and E(X).
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