1. A simple random sample of 400 students is taken at a large university. The average height of the sampled students is 68 inches and the SD is 2 inches. The distribution of heights in the sample follows the normal curve very closely. An approximate 68% confidence for the average height of students at the university is 68 inches plus or minus ____________ inches. Approximately 68% of the students in the sample have heights in the range 68 inches plus or minus ____________ inches.

Question

anonymous · Answer

Do you want us to fill in the blanks.. Than its most likely 2.

anonymous · Answer

yeah, but somehow the first one wasn't 2. Oh well.
Thanks though!.

anonymous · Answer

alright...yw

anonymous · Answer

An approximate 68% confidence for the average height of students at the university is 68 inches plus or minus 0.0997 inches.

Approximately 68% of the students in the sample have heights in the range 68 inches plus or minus 2 inches.