3 years ago

What is the surface area of the figure? A. 582 ft2 B. 291 ft2 C. 399 ft2 D. 900 ft2

1 answer:

3 0

The answer is A .582.

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erastovalidia [21]

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SpyIntel [72]

Answer: 1308

Step-by-step explanation:

Given : Level of confidence = 0.97

Significance level : $\alpha=1-0.97=0.03$

Critical value : $z_{\alpha/2}=2.17$

Margin of error : $E=0.03$

If prior proportion of population is unknown , then the formula to find the population proportion is given by :-

$n=0.25(\dfrac{z_{\alpha/2}}{E})^2$

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Hence, the minimum sample size needed =1308

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