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At a party there are 30 students over age 21 and 20 students under age 21. You choose at random 3 of those over 21 and separately choose at random 2 of those under 21 to interview about attitudes toward alcohol.
You have given every student at the party the same chance to be interviewed: what is that chance?
Sketch the appropriate distribution, and locate the critical region for a = 0.05.
Based on this sample, is Moe correct in his assertion? Write up formal commentary of results of your test.
Determine the expected shape of distribution of sample mean? Compute the likelihood of choosing a sample with mean of at least $112,000?
Texas Company produces and sells 22,000 units of a single product. Costs associated with this level of production are as follows:
To evaluate average annual expenses of students on books and class materials sample size 36 is taken.
Test the hypotheses that the average household income in the township is greater than $100,000. Hint: Start by stating the null and alternative hypotheses.
If we know that the length of time it takes a college student to find out a parking spot in library parking lot follows a normal distribution with a mean of 3.5 minutes and a standard deviation of 1 minute
To find the probability values in case of raw data, binomial, normal
They hope to use a sample size such that, with probability 0.95, the error will not exceed 0.04. What sample size will ensure this, regardless of what sample proportion value occurs when they gather the sample?
In the context of this scenario, what would be the consequences of making a Type I error?
Compute expected value for each of three actions and find out if manager must accept, further analyze, or reject the lot? Determine expected value of perfect information (EVPI)?
At the Statsville County Fair, the probability of winning a prize in the ring-toss game is 0.1. Show the probability distribution for the number of prizes won in 8 games.
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