2 years ago

I BEG YOU IF YOU AWNSER CORRECTLY I WILL GIVE 6$ PAYPAL

1 answer:

3 0

Answer: BAHAHAHAHHA I ACTAULLY KNOW IT IT IS K=4

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snow_lady [41]

Answer: 46

Step-by-step explanation:

Given : Margin of error : E= 17

Standard deviation : $\sigma=70$

Critical value for 90% confidence level : $z_{\alpha/2}=1.645$

Formula to find sample size is given by :-

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

i.e. $n=(\dfrac{(1.645)\times 70}{17})^2$

$\Rightarrow\ n=45.880700692\approx46$

Hence, the required minimum sample size = 46.

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Citrus2011 [14]

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Romashka-Z-Leto [24]

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$- 20x - 6 = 36x + 4 \\ 36x + 20x = - 6 - 4 \\ 56x = - 10 \\ x = \frac{ - 10}{56} \\ x = - 0.17571428$

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Mila [183]

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Answer=C 2 1/2

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12.5/5=2.5=2 1/2

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