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sladkih [1.3K]
3 years ago
13

Please help, its easy im just slow i need it done in 10 mins please help​

Mathematics
1 answer:
saul85 [17]3 years ago
3 0

Answer:they should have added 2 to 180, not 32

Step-by-step explanation:

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2 years ago
Suppose that .06 of each of two populations possess a given characteristic. Samples of size 400 are randomly drawn from each pop
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Answer:

The correct answer to the following question will be "0.0367".

Step-by-step explanation:

The given values are:

p1=p2=0.06

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n1=n2=400

As we know,

E(p1-p2)=p1-p2=0\\

SE(p1-p2)=\sqrt{\frac{p1q1}{n1}+\frac{p2q2}{n2}}

On putting the given values in the above expression, we get

                   = \sqrt{p1q1(\frac{1}{400}+\frac{1}{400})}

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Now, consider

P(p1-p2>0.03)=P[\frac{(p1-p2)-E(p1-p2)}{SE(p1-p2)}>\frac{0.03-0}{0.0168}]

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                            =P(Z>1-79)

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Therefore, "0.0367" is the right answer.

8 0
3 years ago
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