TEST 3-SHORT ANSWER 23. We are going to develop a survey to determine the propor
ID: 3148278 • Letter: T
Question
TEST 3-SHORT ANSWER 23. We are going to develop a survey to determine the proportion of MTSU students who have obtained the flu shot We want our 95% confidence interval to be within 3 percentage points. How many students do we need to survey? (15 pts) A. In a prior survey, they found that 25% had obtained a flu shot. B. Assume that we do not have any prior surveys to estimate p Suppose it costs an average of $2 per person to survey. How much money is saved if we use the data from the prior study? C.Explanation / Answer
A)
B)
C)
Money saved = (1067-800)*2 = $534
Given CI Level 95% p 0.25 ME 0.03 z-value of 95% CI 1.9600 n = (z/ME)^2*p*(1-p) 800Related Questions
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