Solution :
Given that,
= 0.645
1 - = 1 - 0.645 = 0.355
margin of error = E =0.025
At 99% confidence level the z is,
= 1 - 99%
= 1 - 0.99 = 0.01
/2 = 0.005
Z/2 = 2.576
Sample size = n = (Z/2 / E)2 * * (1 - )
= (2.58 / 0.025)2 * 0.645 * 0.355
=2439
Sample size = 2439
Aresearcher wants to make a 99% confidence interval for a population proportion. A preliminary sample produced...
Next> Question 13 /1 View Policies Show Attempt History Current Attempt in Progress Aresearcher wants to make a 999% confidence interval for a population proportion. A preliminary sample produced the sample proportion of 0.665. The sample size that would limit the margin of error to be within 0.035 of the population proportion is: eTextbook and Media
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