Paper Details

The GMI Ratings’ 2012 Women on Boards Survey showed incremental improvements in most measures of female board representation in the past year. The study reported that 90 of 101 (89%) of French companies sampled, 136 of 197 (69%) of Australian companies sampled, 26 of 28 (93%) of Norwegian companies sampled, 27 of 53 (51%) of Singaporean companies, and 95 of 134 (71%) of Canadian companies sampled have at least one female director on their boards. (Data extracted from bit .ly/zBAnYv.)

a. Is there evidence of a significant difference among the countries with respect to the proportion of companies who have at least one female director on their boards? (Use a = 0.05).

b. Determine the p-value and interpret its meaning.

c. If appropriate, use the Marascuilo procedure and a = 0.05 to determine which countries differ.