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A recent of minimum wage earners found that 27% of them are 16 to 24 years old. Suppose a random sample of 500 minimum wage earners is selected. What is the probability that at most 150 of them are 16 to 24 years old? Use the normal curve approximation to the binomial distribution.
a negative relationship between an explanatory variable x and a response variable y means that as x increases y
determine the value of c so that the following functions represent joint probability distributions of the random
They also send the upper 2.5% directly to the company without an interview. Based on the data the assumption of a bell-shaped distribution, what score should be used for the two cutoffs?
samples were collected from two ponds in the bahamas to compare salinity values in parts per thousand. several samples
A decision maker is working on a problem that requires her to study the uncertainty surrounding the payoff of an investment. There are three possible levels of payoff -$1,000, $5,000, and $10,000.
suppose that a particular candidate for public office is in fact favored by 48 of all registered voters in the
The p-value of the test is closest to:
there are many consulting organizations that predict whether increases in stock prices will be unusually low unusually
a manufacturer has determined that for every 1000 units it produces 3 will be faulty. what is the probability that an
What is the probability that a random sample of size 400 will have less than 49% of the people who balance their checkbooks at least once per month?
If an original set of measurements is made in inches and has mean of 36 and variance of 144, what will be the mean, variance, and standard deviation if:
An average department store sells 350 men's suits per year. The men's suit departments at a particular national chain of stores claim they sell more than the industry average. In 35 of their stores, they sold, on the average, 430 suits per year wi..
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