Asked by Jenny
From the length(in seconds) of 80 randomly chosen U2 songs, the mean determined was 289.6986295 and standard deviation was 76.82292002. Assume that the data is normally distributed and that the bands entire collection of songs has a mean and standard deviation equal to those calculated above. What percentage of U2 songs are expected to be
A.) over 180 seconds
B.) Between 210 seconds and 300 seconds
C.) Under what length of time will 90% of all U2 songs expected to be?
A.) over 180 seconds
B.) Between 210 seconds and 300 seconds
C.) Under what length of time will 90% of all U2 songs expected to be?
Answers
Answered by
Steve
you can get a handle on this stuff at
http://davidmlane.com/hyperstat/z_table.html
http://davidmlane.com/hyperstat/z_table.html
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.