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A technician monitors a group of five computers that run an automated manufacturing facility. It takes an average of 15 minutes (exponentially distributed) to adjust a computer that develops a problem. The computers run for an average of 85 minutes (Poisson distributed) without requiring adjustments. What is the:
(a) Average number of computers waiting for adjustment?
(b) Average number of computers not in working order?
(c) Probability the system is empty?
(d) Average time in the queue?
(e) Average time in the system?
You've been recently hired as a marketing analyst in an advertising agency. You are assigned the task of assessing the impact of direct marketing promotions.
at ajax spring water a half-liter bottle of soft drink is supposed to contain a mean of 520 ml. the filling process
Micron Electronics makes both desktop and laptop personal computers that they sell directly to customers by phone or over the Internet.
An analyst wishes to include number of older siblings in family as a predictor variable in a regression analysis of factors affecting maturation in eighth graders. The number of older siblings in the sample observations ranges from 0 to 4.
As part of their application for a loan to buy Lakeside Farm, a property they hope to develop as a bed-and-breakfast operation, the prospective owners have projected:
according to government data 25 of employed women have never been married.a if 10 employed women are selected at
Find the complex solution to this quadratic equation: x^2 + 6x + 10 = 0.
Draw the appropriate conclusions with respect to female and male human resource manager salary levels. Calculate the t value for independent groups for the following data.
To test whether or not there is a difference between treatments A, B, and C, a sample of 12 observations has been randomly assigned to the 3 treatments.
1.females in a certain class rated their intelligence with a mean of 6.5. the males in the same class rated their
The Minneapolis Star Tribune newspaper has decided to write an article about gasoline prices in the Twin Cities area (Minneapolis and St. Paul).
A random sample of 22 service times (in minutes) gives s-square = 8. Give a 95% confidence interval for the variance of service time at the bank.
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