Body temperatures were measured on a random sample of 20 females and 20 males applying for health insurance. Together, their average temperature was 98.8°F with a standard deviation of 0.2°F.
a. Are validity conditions met to carry out a theory-based test of significance to see if average adult body temperature is different from 98.6? Explain why or why not. Is there any other information you would like to know?
b. Carry out a theory-based test of significance for a single mean. Report the p-value and include a conclusion based on this p-value.
c. What is the value of the standardized test statistic and what does this tell you about your sample mean?

d. Does your answer to (c) coincide with your answer to (b)? Explain.