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What are the alternatives that a company may explore prior to making its downsizing decision.
question considerthedataset123456789a. obtainthemeanandthemedianofthedata. whatistheshapeofthe distribution?b.
Statistics play an important role in understanding the construct of personality. With SPSS, comparison of means analyses can be conducted to promote a greater understanding of personality.
a production manager wants to determine how many units of each product to produce weekly to maximize weekly profits.
computing the probability values using normal distribution.the distribution of scores on the sat is approximately
Evaluate the mean and variance of Y for ? = 0.2 and n = 30.
a. What grade must you exceed to obtain an A? b. What grade must you obtain to pass the course with a C or better?
A few random results for you to ponder...do the results justify the conclusions? Why or why not? Give a reason why the conclusions don't necessarily follow from the statement.
You take a random sample of 100 pins from the lot supplied by the vendor and test them. You find 8 of them defective. What is the 95% confidence interval for percentage defective in the lot?
If additional explanatory variables were available (for example, a performance evaluation), how would you use this information to study the RIF?
What could cause a negative reliability estimate and how does someone know which items would need to be recoded?
If the standard deviation of the differences was 0.5, find a 95% confidence interval for the difference. Assume the distribution of GPA's is approximately normal.
To what probabilities do each of the following sigma levels correspond to, based on a standard normal curve: 3 sigma, 4sigma, 5 sigma, and 6 sigma? (Hint: Use the NORMSDIST function in Excel.
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