Scientists suspect that females can smell a particular chemical with an intensity greater than that of males. It is understood that there is a genetic component which affects the sensitivity to this...

Scientists suspect that females can smell a particular chemical with an intensity greater than that of males. It is understood that there is a genetic component which affects the sensitivity to this chemical as well. 7 sets of full blood siblings are put near the chemical and asked to rate its intensity on a scale of 0 to 10. (0 means cannot smell.) Here are the results:


Please state:

1. Qualitative (Categorical) or Quantitative (Numeric)
• If Qualitative: Goodness of Fit or Test of Homogeneity/Independence?
• If Quantitative: Proportions or Means?
2. State the null and alternative hypotheses.

3. What distribution would you use to conclude the test, assuming all necessary assumptions were
satisfied? If Degrees of Freedom are involved, state them.

Extracted text: Smiths Chos Hajs Schwartz Hassenpfeffer Youngs Rodriguez brother 6 4 5 2 9 sister 8 3 7 9 4 10