11.21 Testing a genetic theory In an experiment on chlorophyll inheritance in corn, for 1,103 seedlings of self-fertilized heterozygous green plants, 854 seedlings were green and 249 were yellow. Theory predicts that 75% of the seedlings would be green.

a. Specify a null hypothesis for testing the theory.

b. Find the value of the chi-squared goodness-of-fit statistic and report its df.

c. Report the P-value and interpret.