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Bumek [7]
2 years ago
13

Sarah is cutting ribbons for a pep rally. The length of each ribbon needs to be 3.57 inches if she needs 1,000 ribbons what is t

he length of ribbon sarah need
Mathematics
1 answer:
almond37 [142]2 years ago
8 0

Answer:

3,570

Step-by-step explanation:

To find the answer, you have to multiply 1,000 and 3.57

3.57 x 1,000 = 3,570

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The value of the z statistic for the considered data is given by: Option A: -3.87 approximately.

<h3>How to find the z score (z statistic) for the sample mean?</h3>

If we're given that:

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  • Sample size = n
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z = \dfrac{\overline{x} - \mu}{s}

If the sample standard deviation is not  given, then we can estimate it(in some cases) by:

s = \dfrac{\sigma}{\sqrt{n}}

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For this case, we're specified that:

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