Basic Computation Testing p A random sample of 30 binomial trials resulted in 12 successes Test the claim that the population proportion of successes does not equal 0 50 Use a level of significance of 0 05 (a) Check Requirements Can a normal distribution be used for the p distribution Explain (b) State the hypotheses (c) Compute p and the corresponding standardized sample test statistic (d) Find the P value of the test statistic (e) Do you reject or fail to reject H0 Explain (f) Interpretation What do the results tell you AppendixLO1

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Question: Basic Computation: Testing p A random sample of 30 binomial trials resulted in 12 successes. Test the claim that the population proportion of successes does

Basic Computation: Testing p A random sample of 30 binomial trials resulted in 12 successes. Test the claim that the population proportion of successes does not equal 0.50. Use a level of significance of 0.05.

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

(b) State the hypotheses.

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

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

(e) Do you reject or fail to reject H0? Explain.

(f) Interpretation What do the results tell you?

AppendixLO1

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