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3 years ago

9

What is the estimated mean absolute deviation of the population? {76,67,80,83,79,76,76,82,82

2 answers:

Sveta_85 [38]3 years ago

6 0

The mean is 77.9 so subtract each number from the mean (if it’s negative just keep the number the same and change it to positive). Once you have subtracted the mean from all the numbers (or vise versa as long as it’s positive) add the differences together and find the mean of them. There’s your answer. ☺️

Valentin [98]3 years ago

3 0

You can't really say the absolute deviation of the population to me but if you wanted to you could

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Radda [10]

Answer:

x intercept at (7/3 , 0)

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Step-by-step explanation:

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2 years ago

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kvasek [131]

Answer:

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$\hat{p}=\frac{25}{70}=0.3571$

The 95% confidence interval for the population proportion of printers that are used in small businesses is:

$\hat{p} \pm z_{\frac{0.05}{2}} \sqrt{\frac{\hat{p}(1-\hat{p})}{n} }$

Where:

$z_{\frac{0.05}{2}}=1.96$ is the critical value at 0.05 significance level

$\therefore 0.3571 \pm 1.96 \sqrt{\frac{0.3571(1-0.3571)}{70} }$

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