When interbreeding two strains of roses, we expect the hybrid to appear in three genetic classes in the ratio 1:3:4. If the results of an experiment yield74hybrids of the first type,343of the second type, and372of the third type, do we have sufficient evidence to reject the hypothesized genetic ratio at the .05 level of significance?

(a) Find the test statistic. (Give your answer correct to two decimal places.)

(ii) Find thep-value. (Give your answer bounds exactly.)

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(b) State the appropriate conclusion.