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53% of the students on campus are men, 28% of the students are majoring in business, and 19% of the men on campus are majoring in business. What is the probability that if you randomly select a student on campus, this is student is male OR majoring in business?
To determine the possible effect of a chemical treatment on the rate of seed germination, 300 chemically treated seeds and 250 untreated seeds were sown.
A researcher used stepwise regression to create regression models to predict BirthRate (births per 1,000) using five predictors
A discussion of the ranges for the objective function coefficients. What do the ranges indicate about how sensitive the recommended solution is to HJ's exposure rating coefficients?
You choose random sample of 50 cans, and mean amount of paint per 1-gallon can is 0.995 gallon. Is there evidence that mean amount is different from 1.0 gallon (use α=0.01).
Ethics. The one-time fling! Have you ever purchased an article of clothing (dress, sports, jackets, etc.) worn the item once to a party, then returned the purchase?
If there are 12 business-class passengers and 50 tourist-class passengers on a particular flight, what are the expected value of total luggage weight and the standard deviation of the total luggage weight?
In a normal population with sigma=20, a random sample of size n gave X(mean)=56.53. At the 5% significance level, make a two-tailed test of the null hypothesis mu=50, when (a) n=24 (b) n=36
Downhill Ski Resort in Colorado has accumulated information from records of the past 30 winters regarding the measurable snowfall. This information is as follows:
If the player does not win or lose on his second roll he continues to roll, using the same criteria given for the second roll.
Suppose 1.5 percent of the antennas on new Nokia cell phones are defective. For a random sample of 10 antennas, find the probability that:
What is the probability of finding exactly four watch soap operas?
Is there a relationship between the opinion and the location of the resident at a level of significance of 0.05?
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