Question: Suppose that a null hypothesis, in words, is that the mean weight for the population of newborn babies is the same in the United States as it is in England.
a. Write the null hypothesis in symbols. Use Example.
b. What is the null value in this situation?
Example: Mean Normal Body Temperature for Men and Women A researcher wonders whether men and women have different average normal body temperatures. To study this question, she defines the population parameters:
μ1 = mean body temperature for the population of all men.
μ2 = mean body temperature for the population of all women.