Question

Census Bureau data shows that the mean household income in the area served by a shopping mall is $64,500 per year with the standard deviation of $8,000. A market research gathers a random sample of 100 shoppers at the mall to find out whether the mean household income of mall shoppers of $61,000 is different than the general population.

Q: What is the null hypothesis ?

Answer 1

Considering the situation described, the null hypothesis is given as follows:

$H_0: \mu = 64,000$.

What are the hypothesis tested?

At the null hypothesis, it is tested if the mean is the same as in the Census, of $64,000, hence:

$H_0: \mu = 64,000$.

At the alternative hypothesis, it is tested if the mean is different from the Census, hence:

$H_1: \mu \neq 64,000$.

More can be learned about hypothesis tests at https://brainly.com/question/13873630

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