Suppose 8 of 20 students in a grade-school class develop influenza, whereas 20% of grade-school students nationwide develop influenza.In USE SALT(a) Is there evidence of an excessive number of cases in the class? That is, what is the probability of obtaining at least 8 cases in this class if the nationwide rate holds true? (Round your answer to four decimal places.)(b) What is the expected number of students in the class who will develop influenza?

Suppose 8 of 20 students in a grade-school class develop influenza, whereas 20% of grade-school students nationwide develop influenza. n USE SALT (a) Is there evidence of an excessive number of cases in the class? That is, what s the probability of obtaining at least 8 cases in this class if the nationwide rate holds true? (Round your answer to four decimal places.) (b) What is the expected number of students in the class who will develop influenza?

Suppose 8 of 20 students in a grade-school class develop influenza, whereas 20% of grade-school students nationwide develop influenza. n USE SALT (a) Is there evidence of an excessive number of cases in the class? That is, what s the probability of obtaining at least 8 cases in this class if the nationwide rate holds true? (Round your answer to four decimal places.) (b) What is the expected number of students in the class who will develop influenza?

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter8: Sequences, Series,and Probability

Section8.7: Probability

Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....

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