2.3 Qs 8-10

John wanted to know the income of every household in his country. While this is not feasible explain how he could go about achieving his best estimate.

This response will be awarded full points automatically, but it can be reviewed and adjusted after submission.

Sara is collecting scores for a new verbal reasoning test. She has the score of 800 individuals. The average score from this population is 94. From this population she draws a set of 5 samples of 10 scores, and a set of 5 samples of 100 scores and calculates the means of each. The results are presented below.

Set A has a sample size of Fill in the blank 1 of 2

Set B has a sample size of Fill in the blank 2 of 2

Thinking now about the standard error of the mean (SEmean), what happens to the SEmean statistic when the sample size increases?

The SEmean gets smaller