Recall that an IQ score (from a low score of 1 to a high score of 9) was determined for each in a sample of 158,044 Finnish citizens. Also recorded was whether or not the citizen invested in the stock market. The accompanying table gives the number of Finnish citizens in each IQ score/investment category. Which group of Finnish citizens (market investors or non investors) has the highest average IQ score?
For Information: Refer to The Journal of Finance (December 2011) study of whether the decision to invest in the stock market is dependent on IQ, Exercise 3.42.

Transcribed Image Text:

IQ Score Invest in Market No Investment Totals 893 1,340 2.009 5,358 8,484 10,270 6,698 5,135 4.464 44,651 4,659 9.409 9,993 19,682 24.640 21,673 11,260 7010 5,067 113,393 5,552 10,749 12,002 25,040 33,124 31,943 17958 12,145 9531 158,044 Totals