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Unformatted text preview: Statistics 104 Spring 2011 Section #5 Topics for Section Continuous Random Variables Normal Distribution Sampling Distribution of Sample Mean Central Limit Theorem (for general sums of random variables) tdistribution Confidence Intervals Practice Problems 1. The daily high temperature for the first week in March in Boston is approximately Normally distributed with an average high of 42 F and a standard deviation of 7 F. a. Suppose that yesterday's high temperature was 40 F. What is the probability that a day in the first week of March would have a high of 40 F or colder? b. What high temperature needs to be achieved in order to be in the top 1% of daily high temperatures in the first week of March? c. On Friday, February 18, it got up to 60 F. What is the probability that a day in the first week of March would have a high of 60 F or warmer? 2. There is a sign in the university library elevator indicating a 16person limit as well as a weight limit of 2500 pounds. Suppose that the weights of students, faculty, and staff are approximately Normally of 2500 pounds....
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 Fall '11
 MichaelParzen
 Statistics, Central Limit Theorem, Normal Distribution, TDistribution

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