Five Brands of Orange Juice Are Displayed Side by Side

Short Answer

Five brands of orange juice are displayed side by side in several supermarkets in the city of Chicago. It was noted that in one day, 180 customers purchased orange juice. Of these, 30 picked Brand A, 40 picked Brand B, 25 picked Brand C, 35 picked Brand D, and 50 picked brand E. In Chicago, can you conclude at the 5% significance level that there is a preferred brand of orange juice?
Compute :
______________
Reject when > ______________.
Conclude that there ______________ preferred brand of orange juice in Chicago.