answer all correctly with explaination needed...

You wish to test the following claim (H a) at a significance level ofa = 0.01 Haw < 87.9 You believe the population might be normally distributed, but you do not know the standard deviation. You obtain a sample of size n = 28 with mean a: = 79.3 and a standard deviation of s = 12.6. What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value The value is... @ less than (or equal to) a O greater than a This value leads to a decision to... @ reject the null O accept the null O fail to 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 less than 87.9. O There is not sufficient evidence to warrant rejection of the claim that the population mean is less than 87.9.