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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?
A car manufacturer tests the first 1,000 cars coming off the assembly line to see if their new anti-lock braking system works correctly. Use the typical values for control limits.
If the names of these 100 people in the building are still unknown but a room is allowed to lodge one tenant at most , then are there how many ways of room occupation?
According to the empirical rule, if the data from a "bell-shaped" normal distribution ______ percent of the observation will be contained between 2 standard deviations below the mean and 2 standard deviations above the mean.
Find the test statistic value for testing the equality of population means of the two samples.
Find out the expected winnings for a person who buys one ticket.
With a major expansion planned, Judy projects sales next year to increase to 1,200 radials. What will the demand be each season? Please show work (formulas).
Are all the events in this distribution mutually exclusive? Describe in detail.
Using the 0.99 confidence coefficient, what are the confidence limits for the proportion that plan to vote for the Democratic incumbent.
Describe five data collection techniques in your own words. Be sure to cite any sources you used. Explain why the examination of collected data is so important.
Assume the population standard deviations are not the same. At the .05 significance level, is there a difference in the mean waiting time?
One measure of the overall sampling error in the entire distribution of sample means is the
What would you recommend Taylor do to cut back its labor cost? (Illustrate using an ABC plan.)
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