Advanced Placement (AP), 05.02.2021 02:40 firesoccer53881
A music website claims the mean length of their songs is 3.75 minutes. Suppose the length of songs from this website follows a Normal distribution with standard deviation 0.5 minutes. If 7 songs from this website are randomly selected, then there is about a 90% probability that the sample mean will fall in which interval?
a. 1.57β5.93 minutes
b. 2.93β4.57 minutes
c. 3.44β4.06 minutes
d. 3.54β3.96 minutes
e. 3.63β3.87 minutes
Answers: 1
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A music website claims the mean length of their songs is 3.75 minutes. Suppose the length of songs f...
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