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A manufacturer is studying the effects of cooking temperature, cooking time, and type of cooking oil for making potato chips. Three different temperatures, 4 different cooking times, and 3 different oils are to be used.
(a) What is the total number of combinations to be studied?
(b) How many combinations will be used for each type of oil?
(c) Discuss why permutations are not an issue in this exercise.
One use of the Chi-square goodness of fit test is to determine if specified multinominal probabilities in the null hypothesis is correct.
Compare the vital capacityfor the two groups.calculate a 99% confidence interval for the difference.the result of this comparison may be misleading.why?
Perform an exponential smoothing forecast with α=0.3 with the following data. Use the demand for the month of January for the initial forecast.
Assume the population proportion is p = .25. What is the probability that the sample proportion will be within +/- .03 of the population proportion if a sample of size 1,000 is selected (to 4 decimals)?
The lead time is 2 weeks.If you were asked to create an (R,s,S) policy for this, what parameters would you pick? Give your reasons.
A researcher selected a sample of 50 residents from each of 3 different cities to determine if they were willing to participate in a medical experiment. which of the following assumptions is NOT made for the F test for comparing 3 or more means?
1. you have obtained a sub-sample of 1744 individuals from the current population survey cps and are interested in the
What sample size must you take to be 96% confident that the results will be within $.75 of the true mean cost per call?
A sample of 50 retirees is drawn at random from a normal population whose mean age and standard deviation are 75 and 6 years, respectively.
How many independent network servers would be needed if each has 99 percent reliability? (b) If each has 90 percent reliability?
Six employees who have formed a car pool. If only four of these employees can drive, how many possible seating arrangements are there for the group?
Scores are obtained from the Law School Admission Test (LSAT) are normally distributed with a mean score of 550 and a standard deviation of 110.
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