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A recent study was designed to compare smoking habits of young women with those of young men. A random sample of 150 women revealed that 45 of them smoked. A random sample of 100 men indicated that 25 smoked. At the significance level does the evidence show that a higher proportion of women smoke?
The final grades given by two professors in introduction to operations research course have been carefully examined. The students in the first professor's class had a grade point average of 3.0 and a standard deviation of 0.2.
My son plays for the Hooks and his average is .333. Therefore I am going to assume the probability of him getting a hit is .333 for each time he bats. In a recent game he batted three times.
An upper-level sociology class at a large urban university has 120 students, including 34 seniors, 57 juniors, 22 sophomores and 7 freshmen.
What is the probability that the device will detect at least one of the two shoppers entering together?
Find the lowest possible score a candidate can score and still qualify. Assume the scores are normally distributed.
For a random sample of 50 batteries, what is the probability that the sample mean will be less than 27.5 hours?
In order to estimate the difference between the average hourly wages of employees of two branches of a department store, the following data have been gathered.
Compute the grouped data mean for this distribution. Use MINITAB and using the original scores, compute the raw-data mean. Use MINITAB.
Criterion of realism or Hurwitz. Assume that the payoff from an investment depends on market conditions. Illustrate what is the criterion of realism value.
ABC insurance sells term life insurance policies. If the plicy holder dies during the term of the policy ABC pays out $100000. If the person does not die ABC pays nothing and there is no further value to the policy.
The remaining 5 were not given the overview. Here are the scores for students in each group:
What is the likelihood that none of the selected flights arrived within fifteen minutes of scheduled time?
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