2 years ago

Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

1 answer:

vazorg [7]2 years ago

3 0

Answer:

Step-by-step explanation:

You need to divide 20 by 1/4 as 1/4 of the people support it, and you need 20. 20/(1/4)=80.

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Fynjy0 [20]

B. the weight of the objects inside the box

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3 years ago

Radda [10]

<h2>Answer with explanation:</h2>

As per given , we have

Sample size : n= 5

Degree pf freedom = : df= 5-1=4

$\mu=\$75.00$

$\sigma=\$13.00$

Significance level for 90% confidence = $\alpha=1-0.90=0.1$

Using t-value table , t-critical value for 90% confidence:

$t_{\alpha/2, df}=t_{0.05, 4}=2.132.$

Margin of error of $\mu$ : $E=t_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}\\\\(2.132)\dfrac{13}{\sqrt{5}}=12.3949720129\approx12.39$

Interpretation : The repair cost will be within $12.39 of the real population mean value $\mu$ 90% of the time.

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tia_tia [17]

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VARVARA [1.3K]

W = 1+15*l
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mestny [16]

if your wondering what 7 times 3073 is then your answer is 21511. If your looking for something else I don't understand it then. Hope this helps!

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