3 years ago

Find the P(D') and P(T')

1 answer:

5 0

Fourths, (1/4), (.25), (25%)

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Steels is equal to x and plastic pipes is equal to y

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The radius of <span>(x^2−6x)+(y^2−10y)=−18
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prisoha [69]

6a - 2a = 4a
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zubka84 [21]

Answer: a) 0.68, 0.1043, b) 0.68, 0.066

Step-by-step explanation:

Since we have given that

p = 0.68

n= 20

Expected value = 0.68

So, Standard error would be

$\sqrt{\dfrac{p(1-p)}{n}}\\\\=\sqrt{\dfrac{0.68\times 0.32}{20}}\\\\=0.1043$

if n = 50

Expected value = 0.68

So, Standard error would be

$\sqrt{\dfrac{p(1-p)}{n}}\\\\=\sqrt{\dfrac{0.68\times 0.32}{50}}\\\\=0.0659\approx 0.066$

In both the cases,

Yes it is appropriate to use the normal distribution for expected value and standard error.

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4 years ago