Decide whether a parametric or nonparametric test is needed. Carry out the appropriate statistical test using Excel or Systat. For each test, be sure to include

i. Null Hypothesis (H0)

ii. Alternate Hypotheses

iii. P-value

iv. Reject or do not reject

v. Conclusion

Problem 2: Size of crabs.

# of crabs in different size categories

Male Female

Small 22 15

Large 13 18

Problem 4: Squash phenotypes resulting from dihybrid cross.

# squash

crooked 32

bell 11

oval 9

straight 3