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A Wendy's fast-food restaurant sells hamburgers and chicken sandwiches. On a typical weekday, the demand for hamburgers is normally distributed with a mean of 450 and standard deviation of 80 and the demand for chicken sandwiches is normally distributed with a mean of 120 and standard deviation of 30. How many chicken sandwiches must the restaurant stock to be 99% sure of not running out on a given day?
The data obtained from the 30 respondents are shown in the table. Calculate the category means and the grand mean. Show Calculations. Calculate SSy, SSx, and SSerror. Show Calculations.
Do a feasibility study to assess the likelihood of the project being completed and producing useful results. If possible, the feasibility study should contain some preliminary results (e.g. a pilot data set and initial data analysis).
That the requirement is NULL AND VOID. To be PROVED UNWORKABLE and sink like the Titanic? It is WORTH a little delay to have such a desirable result, isn"t it?
A computer system uses passwords constructed from the 26 letters (a to z) or 10 integers (0 to 9). Suppose there are 10000 users on the system with unique passwords. A hacker randomly selects (with replacement) passwords from the potential set.
On weekdays there is an average of four customers waiting in line. What is the probability that you visit Safeway today during this period and find: No customers are waiting?
The gas price index for 1985 was 218.5 and the gas price index for 2000 was 276.8. If it cost $18.13 to fill your gas tank in 1985, how much would it have cost to fill the same tank in 2000?
Workers drive the company vehicle to purchase lunch versus returning to the office to pick up their personal vehicles in order to purchase their lunch?
Is there evidence of violations of the usual ANOVA assumptions of equal variances and normal populations? Set up and perform appropriate TESTS at the α = 0.05 level of significance.
The probability that a given alternator will fail on a 1-hour flight is .02. What is the probability that (a) both will fail? (d) Neither will fail? (c) One or the other will fail? Show all steps carefully.
Random sample of 250 americans is selected, the mean of this sample belongs to a sampling distribution. What is the shape of this sampling distribution?
Compute mean absolute percentage error (MAPE) of the forecasts.
How much net profit can John expect (on average) to earn from the store in total over the next five years?
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