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Nadya [2.5K]
3 years ago
5

Can y’all help me please

Mathematics
2 answers:
BigorU [14]3 years ago
6 0
I think A is the answer.
muminat3 years ago
5 0

Answer:

1. 4m(note this might be switched with 2)

2. 5m(note this might be switched with 1)

3.3m

4. 60

5.60

Step-by-step explanation:

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4 years ago
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Consider a population proportion p = 0.68. Calculate the expected value and the standard error of with n = 20. Is it appropriate
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.

5 0
4 years ago
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