A multinomial experiment with k = 4 cells and n = 400 produced the data shown in the accompanying table. Do these data provide sufficient evidence to contradict the null hypothesis that p1 = .2, p2 = .4, p3 = .1, and p4 = .3? Test, using α = .05.
| Cell | |||
| 1 | 2 | 3 | 4 |
ni | 70 | 196 | 46 | 88 |
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