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What is the probability that there are at least 3 "Bright" people among 15 randomly chosen people? (You may use Table C to approximate this.) G) How many "Bright" people do you expect to have among 1000 randomly chosen people? H) What is the probability that there are at least 40 "Bright" people among 1000 randomly chosen people? I) What is the probability that there are no more than 5% of "Bright" people among 1500 randomly chosen people?
Suppose Abraham Lincoln had answered a survey questionnaire in which he indicated that he had not received a grade school diploma. The researcher found that Lincoln's educational score did not correlate with the expected variables. What was wrong?
Define a game and prepare the odds of winning. The game could be a card game with two cards or a dice game. Use MS-Excel (if possible) to solve this problem
Find the probability that the average diameter of those sand dollars is more than 2.707 centimeters. Assume that the variable is normally distributed.
Estimate with 90% confidence the difference in the level of satisfaction with service between the two branches.
Women in the U.S. Air Force have hands that are 6.9 inches on the average (from the tip of the middle finger to the heel of the hand). The standard deviation is 0.34 inches. Assume that hand length is normally distributed.
In a survey, 55% of the voters support a particular referendum. If 40 voters are chosen at random, and X is the number of voters that support this referendum, find the mean and variance of X.
Explain in detail and give an original example of the four types of probability.
A sample of 100 orders revealed that 82 were delivered within the promised time. At the .10 significance level, can we conclude that less than 90 percent of the orders are delivered in less than 10 minutes?
What is the probability that in the next 15 minutes information about 10 or fewer potential customers arrives and what is the probability that 3 or fewer of the calls are successful
What is the minimum score needed to be in the top 25% on this test? Carry your intermediate computations to at least four decimal places.
Assume independent events. Why might the assumption of independence be violated? (b) Why might a driver be tempted not to use a seat belt "just on this trip"?
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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