Author Question: Suppose the U.S. government reports that the total number of people in the U.S. who are currently ... (Read 47 times)

jparksx · **on:** Jul 24, 2018

Suppose the U.S. government reports that the total number of people in the U.S. who are currently infected with HIV is likely to be between 300,000 and 1,000,000 . What is the margin of error for these findings? (Assume a symmetric 95 confidence interval.)
a. +/ 350,000
b. +/ 700,000
c. +/ 5
d. Not enough information to tell

Question 2

Suppose a survey was conducted to find out what proportion of Americans intend to vote in the next Presidential election. For which of the following confidence intervals would it be fair to conclude, with high confidence, that a majority of Americans will vote in the next Presidential election?
a. 52 plus or minus 3
b. 52 plus or minus 2
c. 52 plus or minus 1
d. All of the above are too close to call..