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(Weighted Shortest Processing Time First Rule) We want to schedule N tasks, the ith of which requires Ti time units. Let ti denote the time of completion of the ith task, i.e.,
Let wi denote a positive weight indicating the importance of early completion of the ith task. Use an interchangeto show that in order to minimize the total weighted completion time we must order the tasks in decreasing order of wi/Ti.
The tab labeled 17.40 contains sealant strength measurements on 25 days of production for Boston shingles and 19 days for Vermont shingles. For the 25 days of production for Boston shingles, construct a control chart for the range and construct a c..
How would you gather your data? What would you use to validate your forecasting model? Would you look at the forecasting errors? What program would you use to make your forecast (i.e. Excel or Excel QM)
The mean number of cups was 5 with a standard deviation of 1.5 cups. The distribution was normal. What proportion of students drank 7 or more cups of coffee per day?
1. using statcrunch calculate the chi-square statistic and degrees of freedom for the following set of data for 300
Many newspapers carry a certain puzzle in which the individual must unscramble letters to form words. How many ways can the letters of YARNLE be arranged?
a. Calculate the probability that the sample proportion will be within ±0.05 of the population proportion. b. Calculate the probability that the sample proportion will be within ±1 standard error of the population proportion.
use the weights of cans of generic soda as sample one and use weights of cans as the diet version of that soda as
The adhesion of one 4400-horsepower diesel locomotive model varies in actual use according to a Normal distribution with mean ? = 0.37 and standard deviation ? = 0.04.
The Globe Fishery packs shrimp that weigh more than 1.91 ounces each in packages marked" large" and shrimp that weigh less than 0.47 ounces each into packages marked "small"; the remainder are packed in "medium" size packages.
Recall that the trash bag manufacturer has concluded that its new 30 gallon bag will be the strongest such bag on the market if its mean breaking strength is at least 50 pounds.
Identify the null and alternative hypothesis, test statistic, P-value,critical values and state the final conclusion that addreses the original claim:
in a study of drug testing of olympic athletes at the university of texas in 2004 an athlete was either and illegal
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