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Talja [164]
3 years ago
6

- 8 - 7(2x + 3) = 3(1 - 10) simplified

Mathematics
1 answer:
Dmitry [639]3 years ago
7 0
-15(2x + 3) = -27
5(2x + 3) = 9
10x + 15 = 9
10x = -6
x= 0.6
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Answer:

\sigma = 5.5

And we have a sample size of n =81. We want to estimate the standard error of the sampling distribution \bar X and for this case we know that the distribution is given by:

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And replacing we got:

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Step-by-step explanation:

For this case we know the population deviation given by:

\sigma = 5.5

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\bar X \sim N(\mu ,\frac{\sigma}{\sqrt{n}})

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3 years ago
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I hope you got the idea. Thanks

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I hope I helped you^_^

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