Considering the situation described, the null hypothesis is given as follows:
.
<h3>What are the hypothesis tested?</h3>
At the null hypothesis, it is tested if the <u>mean is the same as in the Census</u>, of $64,000, hence:
.
At the alternative hypothesis, it is tested if the mean is different from the Census, hence:
.
More can be learned about hypothesis tests at brainly.com/question/13873630
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Answer:
690
Step-by-step explanation:
Round from the tens place.
Answer: 8:1
Step-by-step explanation:
480/60 = 8/1
Answer:
5
Step-by-step explanation:
Take 20, and divide it by 4.