Mathematics, 24.05.2021 01:00 Geo777
2. James’s phone has about 3,000 songs. The distribution of the play times for these songs is heavily skewed to the right with a mean of 225 seconds and a standard deviation of 60 seconds.
a. Explain why you cannot safely calculate the probability that the mean time is more than 240 seconds.
b. Suppose you randomly select 36 songs, state the mean play time and the standard deviation.
c. Out of the random sample of 36 songs, find the probability that the mean play time is more than 240 seconds
d. Out of the random sample of 36 songs, find the probability that the mean play time is between 220 and 235 seconds
Answers: 3
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2. James’s phone has about 3,000 songs. The distribution of the play times for these songs is heavil...
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