Question: A person must score in the upper 2 of the
A person must score in the upper 2% of the population on an IQ test to qualify for membership in Mensa, the international high-IQ society. There are 110,000 Mensa members in 100 countries throughout the world (Mensa International website, January 8, 2013). If IQ scores are normally distributed with a mean of 100 and a standard deviation of 15, what score must a person have to qualify for Mensa?
Answer to relevant QuestionsConsider the following exponential probability density function.ƒ(x) = 1 1/8 e-x/8 for x ≥ 0a. Find P(x ≤ 6).b. Find P(x ≤ 4).c. Find P(x ≥ 6).d. Find P(4 ≤ x ≤ 6).Prepare a managerial report that addresses the following issues and recommends an order quantity for the Weather Teddy product.1. Use the sales forecaster’s prediction to describe a normal probability distribution that can ...The National Football League (NFL) polls fans to develop a rating for each football game (NFL website, October 24, 2012). Each game is rated on a scale from 0 (forgettable) to100 (memorable). The fan ratings for a random ...Suppose a random sample of size 50 is selected from a population with σ = 10. Find the value of the standard error of the mean in each of the following cases (use the finite population correction factor if appropriate).a. ...Assume that the population proportion is .55. Compute the standard error of the proportion, σṕ, for sample sizes of 100, 200, 500, and 1000. What can you say about the size of the standard error of the proportion as the ...
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