Using a table of critical t values of the t distribution fi

Using a table of critical t - values of the t distribution, find the range of values for the P - value for testing a claim about the mean body temperature of healthy adults for a left - tailed test with n = 13 and test statistic T = - 3.455. What is the range of values for the P - value? A. 0.01

Solution

As n = 13, then df = n - 1 = 12.

Thus, looking at tables, we see that -3.455 is less than the left tailed critical value of 0.005 significance, which is -3.055.

Thus, it is OPTION C: P value < 0.005. [ANSWER, C]