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Author Question: Explain what the statement of the null hypothesis represents in hypothesis testing. Give an ... (Read 119 times)

wrbasek0

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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?


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Eunice618

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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


wrbasek0

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Reply 2 on: Jul 24, 2018
YES! Correct, THANKS for helping me on my review

Dominic

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Reply 3 on: Yesterday
Excellent

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