Consider a population consisting of the number of teachers per college at small 2-year colleges. Suppose that

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Consider a population consisting of the number of teachers per college at small 2-year colleges. Suppose that the number of teachers per college has an average µ = 175 and a standard deviation σ = 15.
a. Use Tchebysheff's Theorem to make a statement about the percentage of colleges that have between 145 and 205 teachers.
b. Assume that the population is normally distributed. What fraction of colleges have more than 190 teachers?
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Introduction To Probability And Statistics

ISBN: 9781133103752

14th Edition

Authors: William Mendenhall, Robert Beaver, Barbara Beaver

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