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D) Based on this sample, we know that 98% ofpeople eat between 60 fewer and 290

ID: 2954686 • Letter: D

Question

D) Based on this sample, we know that 98% ofpeople eat between 60 fewer and 290 more calories when theyeat dinner in front of the television compared todinner in the dining room.

B) Weknow that 90% of all random samples done on runners at this highschool will show that the mean time difference before and after thetraining is between 2.7 and 4.2seconds.

C) Wecan say with 90% confidence that the average time for the 800-meterrun for middle distance runners at this high school is between 2.7and 4.2 seconds shorter after the newtraining.

D) Weare 90% confident that a randomly selected middle distance runnerat this high school will have a time for the 800-meter run that isbetween 2.7 and 4.2 seconds shorter after the training than beforethe training.

E) Wecan say with 90% confidence that the average time for the 800-meterrun for middle distance runners at this high school is between 2.7and 4.2 seconds longer after the newtraining.

Explanation / Answer

(1) (B) (2) (E)