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Chapter 9.3, Problem 6P

Basic Computation: Testingp A random sample of 60 binomials trials resulted in 18 successes. Text the claim that the population proportion of s uccesses exceeds 18%. Use a level of significance of 0.01.

(a) Check Requirements Can a normal distribution be used for the p ^ distribution? Explain.

(b) Stale the hypotheses.

(c) Compute p ^ and the corresponding standardized sample test statistic.

(d) Find the P-value of the text statistic.

(e) Do you reject or fail to reject H 0 ? Explain.

(f) Interpretation What do the results tell you?

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Chapter 9 Solutions

Bundle: Understanding Basic Statistics, Loose-leaf Version, 7th + WebAssign Printed Access Card for Brase/Brase's Understanding Basic Statistics, ... for Peck's Statistics: Learning from Data

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