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2 years ago

Help please show work

Mathematics

1 answer:

Aleonysh [2.5K]2 years ago

7 0

Answer:

C. 56.25π

Step-by-step explanation:

Circumference=15π=πd⇒d=15

Area=πr^2⇒r=d/2⇒r=7.5⇒π7.5^2=56.25π

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2 years ago

Can someone help me with this

jarptica [38.1K]

The answer is:

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3 years ago

Read 2 more answers

A quality control engineer at a potato chip company tests the bag filling machine by weighing bags of potato chips. Not every ba

Ahat [919]

Answer:

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Step-by-step explanation:

Information provided

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X=21 represent the number of bags overfilled

$\hat p=\frac{21}{100}=0.21$ estimated proportion of overfilled bags

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Hypothesis

We need to conduct a hypothesis in order to test if the true proportion of overfilled bags is higher than 0.15.:

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Alternative hypothesis: $p > 0.15$

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And replacing the info given we got:

$z=\frac{0.21 -0.15}{\sqrt{\frac{0.15(1-0.15)}{100}}}=1.68$

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3 years ago

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Step-by-step explanation:

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3 years ago

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3 years ago