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ale4655 [162]
3 years ago
15

Pls help me with this answer asap!!!!!

Mathematics
1 answer:
Eddi Din [679]3 years ago
5 0

Answer:

d=\sqrt{x} (6^2-1^1)^2+(3^2-1^1)^2

Step-by-step explanation:

The answer is 6.708203932

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Two different simple random samples are drawn from two different populations. The first sample consists of 20 people with 9 havi
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Answer: (-0.48,\ -0.04)

Step-by-step explanation:

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(p_1-p_2)\pm z_{\alpha/2}\sqrt{\dfrac{p_1(1-p_1)}{n_1}+\dfrac{p_2(1-p_2)}{n_2}}

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A 95% confidence interval for the difference of two population proportion will be :-

(0.45-0.71)\pm z_{\alpha/2}\sqrt{\dfrac{0.45(1-0.45)}{20}+\dfrac{0.71(1-0.71)}{2100}}\\\\\approx -0.26\pm0.22\\\\=(-0.26-0.22,-0.26+0.22)\\\\=(-0.48,\ -0.04)

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