5. A radio executive is considering a major switch in his station's format. Currently, the programs are geared heavily towards news, which the producer fears is missing the yOunger market. He collects data on the radio preferences of various age groups to determine if radio format preference is independent of age. Age Group Radio Format YoEg Adult Middle Age Older Adult Music 14 10 3 News/Talk 4 15 1 1 Sports 7 9 5 a. Calculate and compare the appropriate percentages to describe the relationship between age and radio format preference. b. Test the null hypothesis at the .05 alpha level that radio format preference does not differ by age group