QUESTION#1

Assume that children's IQs (Age 6-12) follow a normal distribution with mean 100 and standard deviation of 10.

The local school district sets up a gifted program aiming for those children whose IQs are in top 10%. The minimum IQ score required by this program is closest to:

• 119.6
• 110
• 115
• 116.5
• 112.8

QUESTION #2

You are running a political campaign and wish to construct a 99% confidence interval to estimate the true proportion of registered voters who will vote for your candidate. You will conduct a survey and will assume the margin of error E = .03. The minimum sample size required in this survey is:

• 752
• 2401
• 1842
• 1068
• 456