You wish to test the following claim (Ha) at a significance level of a = 0.05. Ho : p = 0.72 Ha: p + 0.72 You obtain a sample of size n = 283 in which there are 196 successful observations. a) What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = b) What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = c) The p-value is... O less than (or equal to) a greater than a d) This test statistic leads to a decision to... O reject the null O accept the null O fail to reject the null e) As such, the final conclusion is that... There is sufficient evidence to warrant rejection of the claim that the population proportion is not equal to 0.72. ection of the claim that the population