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Question: The daily demand for six-packs of Coke at Mr. D's supermarket follows a normal distribution with mean 120 and standard deviation 30. Every Monday the Coke delivery driver delivers Coke to Mr. D's. If Mr. D's wants to have only a 1% chance of running out of Coke by the end of the week, how many should Mr. D's order for the week? Assume orders are placed on Sunday at midnight. Also assume that demands on different days are probabilistically independent. (Use the fact that the sum of independent normal random variables is normally distributed, with mean equal to the sum of the individual means and variance equal to the sum of the individual variances.)
The data set labcomp .txt is the result of an "inter-lab" study where multiple labs, in this case each located at a different plant, participate in a study to compare measurements within and between the labs.
The men took an average of 20.5 hours per year of personal time with a standard deviation of 2.75 hours. What is the pooled estimate of the variance? Round to three decimal places.
Ms Lisa is the budget director for the New Process Company. She would like to compare the daily travel expenses for the sales staff and the audit staff. She collected the following sample info:
supposed that a b and c are mutually independent events and that pa0.5 pb0.8 and pc0.9. find the probabilities that
Construct a frequency distribution and construct a histogram for the following data and use seven intervals, starting with 30-39.
A snack food company that supplies stores in a metropolitan area with "healthy" snack products was interested in improving the shelf life of its tortilla chip product. Determine the upper-tail critical value from the F distribution
What is the probability that the sample mean will be between M = 510 and M = 520? In symbols, what is p (510
What do you plan to do with all of the T-shirts you collect in your college years? Store them in a box somewhere? Wear them for the next 30 years? Give them away? Leigh Lowe of Louisville, Kentucky, has a different alternative for you-make a quilt..
Which of the F statistics are significant and what is the effect size for the main effect of fertilizer type? What size effect is this?
In a few sentences, describe two designs that can address the research question, can international quality system standards reduce the number of medical device failures that cause injury or death to users? The designs must involve two different stati..
Yielding a sample mean of 190.7 days and a sample standard deviation of 54.2 days. Estimate the true mean population of the growing season with 95% confidence.
Person committed crime, b court failed to prove it and found him not guilty - calculate test statistics and find P-value for test.
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