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Explain the assignment model and how it is similar to a transportation problem.
Give a real-world example of an assignment model to describe what is transported where.
According to Central Limit Theorem, how big of sample is essential to be sure sampling distribution of sample means is normally distributed.
Suppose you roll a standard die 2000 times and let X be the sum of the values you get. Using the Central Limit Theorem, for what value of a is P[X >= a] approximately equal to P[N(0,1) >= 2] ?
Determine the area under the standard normal curve that lies: (a) to the left of Z = -2.31 (b) to the right of Z = -1.47 (c) between Z = -2.31 and Z = -1.47 (d) between Z = 1.47 and Z = 2.31
For the past 20 years, the high temperature on April 15th has averaged (j = 62 degrees with a standard deviation of a = 8. Last year, the high temperature was 66 degrees.
Critically discuss the assumptions, if any, regarding a Chi-square test? What are the assumptions to apply linear regression?
A meat processing plant has processed an average of 100 tons per day for the last several years. Newer processing machines have been installed recently.
Below are the sample times in minutes. At the .05 significance level, can we conclude that there is a difference in their mean times?
Temperature in certain city for the month of June follows a uniform distribution over the interval 61° F to 91° F. Find the temperature which 90% of the June days exceeds?
Record the type of research design used. True lab experiment, quasi-experiment, field experiment, or correlation design.
What is the probability of selecting an accounting major, given that the person selected is a male?
Think about a density curve that consists of two line segments. The first goes from the point (0, 1) to the point (0.7, 1). The second goes from (0.7, 1) to (0.9, 2) in the xy-plane. What percent of observations fall below 0.70?
To obtain the probability that the mean wage of 75 randomly selected workers will exceed $43,000
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