given a confidence of 99% and a population standard deviation of 7,
A. what other information is necessary to find the sample size (n)?
B. Find the maximum error of Estimate (E) if n=57. Please show all work

Question

amistre64 · Answer

the mean might be useful ... i cant quite recall it tho

amistre64 · Answer

$$n=(\frac{z\sigma}{E})^2$$maybe?

$$z=\frac{\hat x-\mu}{\sigma\sqrt{n}}$$
....whats the E ....

amistre64 · Answer

$$n=\frac{z^2pq}{E^2}$$
$$n=\frac{z^2pq}{E^2}$$

if you know proportions; otherwise its just .5^2

amistre64 · Answer

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