Let x be a binomial random variable with n = 25 and p = .3. a. Is
Question:
a. Is the normal approximation appropriate for this binomial random variable?
b. Find the mean and standard deviation for x.
c. Use the normal approximation to find P(6 ≤ x ≤ 9).
d. Use Table 1 in Appendix I to find the exact probability P(6 ≤ x ≤ 9). Compare the results of parts c and d. How close was your approximation?
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a The normal approximation will be appropriate if both np and nq are greater than ...View the full answer
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Related Book For 
Introduction To Probability And Statistics
ISBN: 9781133103752
14th Edition
Authors: William Mendenhall, Robert Beaver, Barbara Beaver
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