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The x-ray department of a hospital has two machines, A and B, which can be used to develop x-ray film. The maximum daily processing capacity of these machines is A = 80 films and B = 100 films. The department must plan to process at least 150 films per day. The operating cost per film are $ 4 for machine A and $ 3 for machine B. To minimize cost, how many films per day should each machine process?
Solve this problem graphically
How much would you be willing to pay for additional capacity on machine A?
What if you made a mistake entering the data, and in place of the final two entries, 48 and 63, you had accidentally entered the single number
An interesting marketing research effort has recently been reported, which incorporates within the variables that predict consumer satisfaction.
Who eats breakfast? The following two-way table describes the 595 students who responded to a school survey about eating breakfast.
Why is a dummy variable uncorrelated with the least squares residual? What does this imply?
james w. has a portfolio that includes 20 shares of disney and 30 shares of amazon. the price of disney stock is
The population standard deviation is unknown. If you assume that the population mean is 19, find the P-value corresponding to the hypothesis that the average cutthroat trout length is different from 19 (i.e. two-tail test).
For each of the following events in the experiment of selecting a three-child family at random, state the complement of the event in the simplest possible.
In any of the multiple comparison techniques (Tukey Kramer, LSD), the estimate of the within-sample variance uses data from the entire experiment.
Suppose that the average time off per employee per year is known to be 3.1 days. A random sample of 21 employees with increased benefits yielded.
Technology and the Internet According to a report from Microsoft, 24% of PCs worldwide are not adequately protected by antivirus software.
why must the service rate be greater than the arrival rate in a single-channel queuing
Proponents and critics of this legislation have looked at the number of traffic fatalities on major U.S. highways (e.g., I-90, I-65, I-75) for the years preceding and following this legislation. Sonny examined the traffic fatalities on each of the..
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