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Luden [163]
3 years ago
12

What is this?? plz help

y = 10( {5}^{2} )" alt="y = 10( {5}^{2} )" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
slavikrds [6]3 years ago
7 0
All you have to is solve for Y.

Solve the exponent first
5^2 = 5 x 5 = 25

Then multiply 10 by 25
10 x 25 = 250

250 is your answer
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A researcher is interested in estimating the mean weight of a semi tracker truck to determine the potential load capacity. She t
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Answer:

(19229.11 ,20770.89)

Step-by-step explanation:

We are given the following information:

Sample size, n = 17

Sample mean = 20,000 pounds

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Significance level = 5% = 0.05

95% Confidence interval:  

\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}  

Putting the values, we get,  

t_{critical}\text{ at degree of freedom 16 and}~\alpha_{0.05} = \pm 2.119  

20000 \pm 2.119(\displaystyle\frac{1500}{\sqrt{17}} ) = 20000 \pm 770.89 = (19229.11 ,20770.89)  

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Read 2 more answers
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djverab [1.8K]

The first answer: you have to 560-200 which equals 360 then divide by 45 which equals 8 so your answers 8

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