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katen-ka-za [31]
3 years ago
7

How to solve algebra questions

Mathematics
1 answer:
liubo4ka [24]3 years ago
3 0

I’m not sure hope this helps you but you can go safari and it will tell you what to write

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If it is assumed that the heights of men are normally distributed with a standard deviation of 2.5 inches, how large a sample sh
Volgvan

Answer:

30 men

Step-by-step explanation:

In order to be sure that the sample mean does differ from the population mean by more than 0.90, the sample size (n) that should be used is given by:

0.90 < Z\frac{s}{\sqrt{n}}

Where 'Z' , for a 95% probability is 1.960, 's' is the standard deviation of 2.5 inches:

0.90 > 1.960\frac{2.5}{\sqrt{n}}\\n >(\frac{1.960*2.5}{0.9})^2\\n>29.64

Rounding up to the nearest whole number, the sample size should be at least 30 men.

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3 years ago
Need help with this difficult question come quick
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3 years ago
Is this set of ordered pairs a function ? (1,9) (0,8) (3,0) (4,9) (7,7).
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It is not a function because the output of 9 repeats.

(1,9) (4,9)

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2 years ago
What is the x and y value?
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Step-by-step explanation:

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3 years ago
Change 5 out of 19 to a percentage give tour answer to 1 decimal place
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