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A typical incoming telephone call to your catalog sales force results in a mean order of $ 28.63 with a standard deviation of $ 13.91. You may assume that orders are received independently of one another. a. Based only on this information, can you find the probability that a single incoming call will result in an order of more than $ 40? Why or why not? b. An operator is expected to handle 110 incoming calls tomorrow. Find the mean and standard deviation of the resulting total order. c. What is the approximate probability distribution of the total order to be received by the operator in part b tomorrow? How do you know? d. Find the (approximate) probability that the operator in part b will generate a total order of more than $ 3,300 tomorrow. e. Find the (approximate) probability that the operator in part b will generate an average order between $ 27 and $ 29 tomorrow.
Accepting Manipulation or Manipulating
Comment on the production control situations depicted by the four control charts shown on the following page, and state what action, if any, would be necessary in each case.
Each of the following proportions is based on survey responses. For each proportion, use the ±2 rule of thumb to determine the 95 percent confidence interval. When asked if they are satisfied with their financial situation, .29 said "very satisfied" ..
q1. which of the following best describes the research question for this study?a.what are the reasons people drive
Let X1, X2 be two random variables with joint pdf f(x1, x2)=4x1x2, 0
Using the information from part by hand, calculate a 90 confidence interval for the difference of the means for the two time periods.
Given a standard normal distribution
What research design was used this study
a. What is the probability that the gun detects speeding and the driver was speeding? (Round your answer to 4 decimal places.)
Difference between the variances in assembly times (in seconds) of employees trained in a computer-assisted, individual-based program and those trained in a team based program?
a. Use the multiplication rule to find the probability that your first two digits match those drawn and your last two digits do not match those drawn. That is, find P(MMXX), where M denotes a match and X denotes a digit that does not match the ..
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