4.

Dr. Chung, a renowned nutritionist, has consistently proclaimed the benefits of a balanced breakfast. To substantiate her claim, she asks her participants to go without breakfast for one week. The following week he asks the same participants to make sure they eat a complete breakfast. Following each week, Dr. Chung asks the supervisors of each participant to rate their productivity for that week.

participant Performance with Performance without

breakfast Breakfast

#1 .............................................. 8 ................................... 6

#2 ..........................,,,................. 6 ................................... 6

#3 .............................................. 8 .................................. 5

#4 ............................................... 8 ................................... 5

using a= .05, do a one tailed test of the doctors hypothesis.

what is your T=