Calculate the sample size needed
for:
a. 95% confidence interval with a margin
of error of 3 and s= 9
b. 95% confidence interval with a margin
of error of 2 and s= 9
Calculate the sample size needed
for:
a. 95% confidence interval with a margin
of error of 1.5 and s= 6.82
b. 90% confidence interval with a margin
of error of 1.5 and s= 6.82