One of the products produced by Branco Food Company is All-Bran Cereal, which competes with three other brands of similar all-bran cereals. The company's research office wants to investigate if the percentage of people who consume all-bran cereal is the same for each of these four brands. Let us denote the four brands of cereal by A,B,C and D. A sample of 700 persons who consume all-bran cereal was taken, and they were asked which brand they most often consume. Of the respondents, 198 said they usually consume Brand A, 197 consume Brand B, 136 consume Brand C, 169 and consume Brand D. Does the sample provide enough evidence to reject the null hypothesis that the percentage of people who consume all-bran cereal is the same for all four brands? Use alpha= 0.025.

Find the value of the test statistic x(squared)=?