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ozzi
3 years ago
10

1. Mark is drawing the outside lines on

Mathematics
2 answers:
Stels [109]3 years ago
7 0

Answer:232

Step-by-step explanation:

74+74+42+42

Just find the perimeter.

storchak [24]3 years ago
5 0

232 ft.

Add each side twice:

74 + 74 + 42 + 42

or

(74 x 2) + (42 x 2)

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Suppose that scores on the mathematics part of a test for eighth-grade students follow a Normal distribution with standard devia
riadik2000 [5.3K]

Answer:

We need an SRS of scores of at least 153.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

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Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

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Now, find M as such

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20\sqrt{n} = 1.645*150

\sqrt{n} = \frac{1.645*150}{20}

\sqrt{n} = 12.3375

(\sqrt{n})^{2} = (12.3375)^{2}

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Rounding to the next whole number, 153

We need an SRS of scores of at least 153.

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Step-by-step explanation:


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Answer:

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Step-by-step explanation:

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3 years ago
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