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Pareto charts. Continue the study of the process of getting to work or class on time from Exercise 27.2. If you kept good records, you could make a Pareto chart of the reasons (special causes) for late arrivals at work or class. Make a Pareto chart that you think roughly describes your own reasons for lateness. That is, list the reasons from your experience and chart your estimates of the percent of late arrivals each reason explains.
Exercise
Describe a process. Each weekday morning, you must get to work or to your first class on time. Make a flowchart of your daily process for doing this, starting when you wake. Be sure to include the time at which you plan to start each step.
Below is the number of new cars sold at Sharkey in the last seven months and for the last eight months at Dave White. Do you agree with Mr. Sharkey? Use the .01 significance level."
A sample of 25 diff. payroll dept found that the employees worked an average of 310.3 days with a std dev. of 23.8 days. what is the 90% confidence interval for the average days worked.
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The error between the sample mean and the population mean for a sample of n = 16 is 5 points and the error between a sample men and population mean for a sample of n = 100 is 2 points. Explain the difference in the standard error for the two sampl..
Which represent errors of estimation for individual points, an alternative way to examine the error of the regression model using a single measurement is to determine the sum of all the residuals.
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What per visit price must be set for the service to break-even? To earn an annual profit of $100.000 and repeat Part a. but assume that the variable cost per visit is $10.
Let X be a random variable representing the time between successive arrivals at a checkout counter in a supermarket. The values of X in minutes (rounded to the nearest minute) are
Whose characteristics can be assume to be independent of each other, were examined. Let X denotes the number of defective computer chips.
Explain the importance of random sampling. What problems/limitations could prevent a truly random sampling and how can they be prevented?
What is the probability that all 5 are basketball players? If the players are to be arranged in a line, how many arrangements are there if the basketball players are together?
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