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1. Dihybrid crosses involving plants with either white or yellow flower and either tall or short...

1. Dihybrid crosses involving plants with either white or yellow flower and either tall or short morphs were done. The yellow allele is dominant over the white allele, and the tall allele is dominant over the short allele. The following are the observed numbers of each combination. Do these data fit the expected distribution?

TYPE OBS FREQ

EXP PROP

YELLOW, TALL 90 0.5625
YELLOW, SHORT 52 0.1875
WHITE, TALL 46 0.1875
WHITE, SHORT 24 0.0625

a. what kind of statistical test needs to be performed?

b. Will you need to test for equal variance? If so, what are your results and how does that influence the next steps in your analysis?

c.What are your null and alternative hypotheses?

H0:

HA:

d. Discuss the results of your analysis. Will you accept or reject your null hypothesis? Why? What can you specifically say about the data?

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