Author Question: Explain what the statement of the null hypothesis represents in hypothesis testing. Give an ... (Read 1277 times)

wrbasek0 · **on:** Jul 24, 2018

Explain what the statement of the null hypothesis represents in hypothesis testing. Give an example.

Question 2

Suppose on a highway with a speed limit of 65 mph, the speed of cars are independent and normally distributed with an average speed = 65 mph and standard deviation = 5 mph. What is the standard deviation for the sample mean speed in a random sample of n = 10 cars?

Eunice618 · **Reply #1 on:** Jul 24, 2018

Answer to Question 1

The null hypothesis is the status quo, or no relationship, or no difference. An example of a null hypothesis is that there is no difference between the proportion of men and women who favor the death penalty.

Answer to Question 2

1.58 mph