Most global organizations consider analytics and big data critical to success. However, is there a difference among North American, European, and Asian-Pacific organizations in the proportion of organizations that are investing heavily in analytics and big data technologies? A CSC study showed that 50% of North American, 66% of European, and 71% of Asian-Pacific organizations are investing heavily in analytics and big data technologies. (Data extracted from CSC Global CIO Survey 2014-2015, bit.ly/1S6CLMQ.) Assume that 200 organization IT leaders within each global region were surveyed.

a. At the 0.05 level of significance, is there evidence of a difference among global regions with respect to the proportion of organizations that are investing heavily in analytics and big data technologies?

b. Determine the p-value in (a) and interpret its meaning.

c. If appropriate, use the Marascuilo procedure and a = 0.05 to determine which global regions differ in the proportion of organizations that are investing heavily in analytics and big data technologies.