You wish to test the following claim (Ha) at a significance level of a - 0.005. Ho: u = 81.8 Ha: u > 81.8 You believe the population is normally distributed and you know the standard deviation is o = 20.6 . You obtain a sample mean of M - 86 for a sample of size n - 47. 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 greater than a This test statistic leads to a decision to... O reject the null