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Leni [432]
2 years ago
11

A company claims that 80% of its customers are under 30. You suspect it is less than this. You take a random sample of 200 custo

mers to test this and find out that 75% of your sample are under 30. What is the alternative hypothesis here
Mathematics
1 answer:
son4ous [18]2 years ago
8 0

Step-by-step explanation:

What we are trying to show is the alternative hypothesis. Here, we are trying to show that what the company claims is wrong; less than 80% of the company's customers are under 30.

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\underline{-x-\frac{5}{3}y=-5} \\
\frac{1}{2}y-\frac{5}{3}y=12-5 \\
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3 years ago
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Answer:

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Step-by-step explanation:

Data

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But we do not need the volume of paint because we know that the wall is squared-shape.

Only we need to know the formula to obtain the area of an square.

Formula   area = length²

So            168 = length²

Finally      √168 = length

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