The last question asks if it is sufficient evidence or not.

You wish to test the following claim (Ha) at a significance level of a = 0.005. Ho: H = 67.7 Ha: H > 67.7 You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n = 671 with mean a = 68.3 and a standard deviation of s = 9.2. 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 This test statistic leads to a decision to... O reject the null O accept the null O do not reject the null As such, the final conclusion is that... O There is sufficient evidence to warrant rejection of the claim that the population mean is greater