Which of the following are assumptions the t-test makes? (choose all that apply)

1. variances in each group are equal

2. the sample size is small

3. standard deviation in one group is several times larger than in the other group.

4. the collected data are normally distributed

5. The data are skewed or bimodal

Tay-sachs disease is caused by a mutation in the hexa gene located on chromosome 15. tay-sachs follows an autosomal recessive pattern of inheritance. with the of the diagram, identify which of the offspring will be an unaffected carrier. a diagram showing the genes of parents who are carriers of tay-sachs disease a. a, b, and c b. b and c c. a and d d. a e. d