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Chicago's Treadway Tires Dealer must order tires from its national warehouse. It costs $10000 to place an order and $400 to review the inventor level. Annual tire sales are N(20000, 4000000). It costs $10 per year to hold a tire in inventory, and each oerder arrives two weeks after being placed ( 52 weeks = 1 year). Assume that all shortages are backlogged.
a) Eistimate R and the number of orders per year that should be placed.
b) Using the answer in part (a), determine the optimal (R,S) inventory policy. Assume that the shortage cost is $100 per tire.
The Wall Street Journal recently ran an article indicating differences in perception of sexual harrassment on the job between men and women.
Provide a descriptive statistic (to 1 decimal) that could be used to estimate the number of women out of 1000 in this population who have tissue abnormalities.
Can we conclude that there is a positive association between the size of the home and the selling price? Use the .05 significance level.
A psychiatrist hires you to study whether her clients self-disclosed more while sitting in an easy chair or lying down on a couch. All clients had previously agreed to allow the sessions to be videotaped for research purposes.
Calculate the MEAN and STANDARD DEVIATION for the distribution below:
At most, only 30 newspaper ads are possible. For every 106.7 radio ad, there must be at least two 103.1 Radio ads. Formulate the LP model to determine the number of ads in each outlet and maximize the effective audience contact.
Determine the upper control limit (UCL) and lower control limit (LCL) for an X-Bar chart if six samples of subgroup size 5 (n=5) were collected, and the mean of the sample averages is 4.7 and mean of the sample ranges is 0.35.
A bank's loan officer rates applicants for credit. The ratings are normally distributed with a mean of 175 and a standard deviation of 15. If an applicant is randomly selected, find the probability of a rating that is between 150 and 200.
A mean of 68 years and a standard deviation of 3.5 years. Find the age at which payments have ceased for approximately 86% of the plan participants.
A sample of 10 observations is selected from a normal population for which the population standard deviation is known to be 4. The sample mean is 23. (Round your answers to 3 decimal places.) (a) The standard error of the mean is_____?
Standard deviation of the sampling distribution of sample proportion is 0.025. However, the report did not indicate what the sample size n was. What was it?
If a time series is stationary without a linear trend or the seasonal component, which of the following forecasting methods may be suitable.
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