Understanding Basic Statistics 6th Edition by Charles Henry Brase,Corrinne Pellillo Brase

Exercise 89

Basic Computation: Testing p A random sample of 60 binomials trails resulted in 18 successes. Test the claim that the population proportion of successes does not equal 18%. Use a level of significance of 0.01.
(a) Check Requirements Can a normal distribution be used for the
distribution Explain.
(b) State the hypotheses.
(c) Compute
and the corresponding standardized sample test statistic.
(d) Find the P -value of the test statistic.
(e) Do you reject or fail to reject H 0
f) Interpretation What do the results tell you