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2 years ago

What is Bethany's score on the test if she got 23 out of 30 right? (Round to the nearest whole number.)

Mathematics

2 answers:

mel-nik [20]2 years ago

6 0

Answer:

77%

Step-by-step explanation:

30 was 100%

23 is x%

x=23*100/30 = 76.666.. rounded to 77%

matrenka [14]2 years ago

3 0

Answer:

77%

Step-by-step explanation:

23 divided by 30 is 0.766666, which percent-wise is rounded to 77% :)

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Answer:

The sample size should be approximately 151.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 100

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We have to evaluate the sample size, n.

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Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.10} = \pm 1.64$

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