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Each year over 1,000 college students die in alcohol-related deaths, often in cases that involve binge drinking. Harvard School of Public Health reported in 2004 that 44% of college students are binge drinkers. In an informal anonymous survey conducted in a statistics class shortly after the Harvard report was released, students were asked: "In the past two weeks, have you had (males) more than five alcoholic drinks on one occasion? (females) more than four alcoholic drinks on one occasion?" [This is how experts classify a student as being a binge drinker or not.] The proportion answering yes was 28/66 + 0.42.
a. Report the center, spread, and shape of the distribution of sample proportion, when population proportion is 0.44 and sample size is 66.
b. How usual or unusual is a sample proportion as low as 0.42 in this situation?
Cold cabin? During the winter months, the temperatures at the Colorado cabin owned by the Starnes family can stay well below freezing (32°F or 0°C).
1. What is the current status of the housing stock in the county?
Criminals are basically stupid, because anyone who isn't basically stupid wouldn't be a criminal.
A small company that manufactures computers computer received 10 shipments of the chips in lots of 20 chips from the manufacturer. what is the probability that there will be 2 shipments with at least one defective chip?
a. Compute the expected profit for each of the expansion plans. b. Calculate the standard deviation for each of the expansion plans.
The average price of a personal computer is 949 assuming that the prices are normally distributed with a standard deviation of 100 what is the price that corresponds to the least expensive 10%.
Modalities. A survey of athletic trainers (Scott F. Nadler, Michael Prybicien, Gerard A. Malanga, and Dan Sicher).
In a series of seven games, the ?rst team to win four games wins the series. If the teams are evenly matched, what is the probability that the team that wins the ?rst game will win the series?
Do hotel managers on the average differ significantly in femininity score from men in general? Assume that the standard deviation of scores in the population of all male hotel managers is the same.
An urn contains 5 balls numbered 1 to 5 of which the first three are black and the last two are gold. A sample of size 2 is drawn with replacement. Let B1 denote the event that the first ball drawn is black and B2 denote the event that the second..
Provide a descriptive statistic (to 1 decimal) that could be used to estimate the number of women out of 1000 in this population who have tissue abnormalities.
If the selected coin is flipped twice and comes up heads twice in a row, what is the probability that the coin is two-headed?
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