What is 60/d when D =10

Mathematics

2 answers:

mina [271]3 years ago

8 0

Plug in d and you get 60/10 and then divide to get 6 as the answer

anygoal [31]3 years ago

6 0

Divide 60 by 10 , you get 6

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Answer:

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Step-by-step explanation:

The information provided is:

$n=80\\\sigma=30,000\\\bar x=585062.50\\\text{Confidence level} = 90\%$

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Compute the 90% confidence interval estimate of the mean annual income of all company presidents as follows:

$CI=\bar x\pm z_{\alpha/2}\cdot\frac{\sigma}{\sqrt{n}}\\\\=585062.50\pm 1.645\times\frac{30000}{\sqrt{80}}\\\\=585062.50\pm5517.50\\\\=(579545, 590580)$