Investigators at an Agricultural Research Facility Randomly Assigned Equal Numbers $\mathrm { H } _ { 0 } : \mu _ { 1 } - \mu _ { 2 } = 0$

Multiple Choice

Investigators at an agricultural research facility randomly assigned equal numbers of chickens to be housed in two rooms. In one room, the chickens experienced normal day/night cycles, while in the other room lights were left on 24 hours a day to see if those chickens would lay more eggs. After collecting data for several days the researchers tested the hypothesis $\mathrm { H } _ { 0 } : \mu _ { 1 } - \mu _ { 2 } = 0$ against the one-tail alternative and found $P = 0.22$ . Which is true?

A) none of these
B) The chickens in the lighted room averaged 0.22 more eggs per day
C) There's a 22% chance another experiment will give these same results.
D) There's a 22% chance that chickens housed in a lighted room produce more eggs.
E) There's a 22% chance that there's really no difference in egg production.