Infection of chickens with the avian flu is a threat to both poultry production and human health. A research team created transgenic chickens resistant to avian flu infection. Could the modification affect chickens in other ways? The researchers compared the hatching weights (in grams) of 45 transgenic chickens and 54 independently selected commercial chickens of the same breed. The data are displayed below. Does the data show significant evidence (with alpha of 0.05) that the population of transgenic chickens differs in mean hatching weight from the population of commercial chickens of the same breed?

a)Perform a T-test to address the research question.For the non-practical skill questions, you can use the unpooled method as default.

b)[PQ]Use JMP to perform an appropriate test for the hypothesis test and verify the condition of the method.

Check list:1) are the two samples independent or dependent?

2) Can CLT be applied to both samples? 3) Check whether , and then decide whether to use pooled or unpooled method.Report just one and justify your choice.

\f\f\f