2.30 Question Help Many states are carofuly considering steps that would help th

Question

2.30 Question Help Many states are carofuly considering steps that would help them collect sales taxes on items purchased through the Intermet. How many randomly selected sales ransactions must be surveyed to determine the percentage that transpined over the Intermer? Assume that we want to be 99% confident that the within seven percentage points of the true population percentage for all sales transactions sample peroentage is n(Round up to the nearest integer) Enter your answer in the answer box and then click Check Answer Al parts showing Clear Al

Explanation / Answer

Given CI Level = 99%
p = 0.5
ME = 0.07
z-value of 99% CI = 2.5758
n = (z/ME)^2*p*(1-p)
= (2.5758/0.07)^2 * (0.5) * (1 -0.5)
= 339

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