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Ede4ka [16]
3 years ago
15

I need help with number 4

Mathematics
1 answer:
Anit [1.1K]3 years ago
4 0

This is from mathstudent55 but btw when you put an answer they go here xd

51/3 = 17: not prime; 55/5 = 11: not prime; 57/3 = 19: not prime. 53 is divisible by only 1 and 53. 53 is a prime number.

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2 years ago
The estimate of the population proportion should be within plus or minus 0.02, with a 90% level of confidence. The best estimate
Rudiy27

Answer:

The sample size required is 910.

Step-by-step explanation:

The confidence interval for population proportion is:

CI=\hat p\pm z_{ \alpha /2}\sqrt{\frac{\hat p(1-\hat p)}{n} }

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MOE=z_{ \alpha /2}\sqrt{\frac{\hat p(1-\hat p)}{n} }

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The critical value of <em>z</em> for 90% confidence level is:

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Compute the sample size required as follows:

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Thus, the sample size required is 910.

5 0
3 years ago
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