A spinner is mounted on a piece of cardboard divided into six areas of equal size. Each of the six areas ...

       A spinner is mounted on a piece of cardboard divided   into six areas of equal size. Each of the six areas is a different color   (blue, yellow, red, green, white and orange). When the spinner is spun, each   color should be selected by the spinner approximately 1/6 of the time. A   student suspects that a certain spinner is defective. The suspected spinner   is spun 90 times. The results are shown below. Find the critical value X 2/0   to test the student's claim. Use α = 0.10.   Color              Blue   Yellow    Red     Green  White  Orange        Frequency      12      19              16       11         17          15