The Mendelian theory states that the number of a type of peas that fall into the classifications round and yellow, wrinkled and yellow, round and green, and wrinkled and green should be in the ratio 9:3:3:1. Suppose that 100 such peas revealed 56, 19, 17, and 8 in the respective categories. Are these data consistent with the model? Use *α*= *.*05. (The expression 9:3:3:1 means that 9/16 of the peas should be round and yellow, 3*/*16 should be wrinkled and yellow, etc.)

## EXPERT ANSWER

The test statistic value is less than the critical value. Fail to reject the null hypothesis. Therefore, it can be concluded that the data is consistent with the ratio of 9:3:3:1.