In Exercises 26, state whether each standardized test statistic z allows you to reject the null hypothesis. Explain your reasoning

(a) z = 1.98

(b) z = -1.89

(c) z = 1.65

(d) z = -1.99

(a) z = 1.98

(b) z = -1.89

(c) z = 1.65

(d) z = -1.99

Elementary Statistics Picturing the World

6th edition

Authors: Ron Larson, Betsy Farber

ISBN: 978-0321911216

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