You wish to test the following claim (Ha) at a significance level of a = 0.05. Ho:p = 80.4 Ha: p > 80.4 You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n = 553 with mean M - 82.4 and a standard deviation of SD = 11.1. What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = The p-value is... O less than (or equal to) a O greater than a