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Consider the following shortest-route problem involving six cities with the distances given.
Path Distance
1 to 2 3
1 to 3 2
2 to 4 4
2 to 5 5
3 to 4 3
3 to 5 7
4 to 6 6
5 to 6 2
a. Draw the network flow model for this problem.
b. Write out the LP formulation (math model) for finding the shortest distance from City 1 to City 6.
c. Solve the model above
Is contamination with the two kinds of bacteria disjoint? Explain. (c) Is contamination with the two kinds of bacteria independent? Explain.
The average number of field mice per acre in a 5-acre wheat field is estimated to be 12. Find the probability that fewer than 7 field mice are found
A statistically significant result occurs when the value of the test statistic falls in the rejection region. A result has practical significance when it is statistically significant
Given that the average monthly amount charged is uniformly distributed, what percent of monthly charges are between $100 and $1100?
Calculate expected value for each decision and choose the best one. Find out how much firm would be eager to pay to a market research firm to gain better information about future market conditions.
A study is conducted to compare mean cholesterol levels for individuals following a low carbohydrate diet for at least 6 months to individuals following a conventional (low fat, low calorie )diet for at least 6 months.
People arrive at a restaurant at a rate of five per minute and wait to receive their order for an average of 5 mins. Customers eat in with a probability of 0.5 and carry out with a probability of 0.5.
We are interested in testing to see if the variance of a population is less than 7. The correct null hypothesis is:
an investigator wants to test if there is a difference in endotoxin levels in children who are exposed to endotoxin as
Find the probility that a randomly selected student has neigther credit card. Find the probability that a randomly selected student has a Mastercard or a Visa or both.
If you had only one minute to estimate the standard deviation of a frequency distribution using only the information that can be obtained from a stem and leaf display, how would you do it and why?
Respond to the questions? In other words, what is the probability that the sample proportion p will be at least 75/300 = 0.25?
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