Sunday

December 21, 2014

December 21, 2014

Posted by **Samantha** on Saturday, May 17, 2014 at 7:08pm.

What percentage of the time will the average be 149 seconds or longer if the new release is randomly selected? (Give your answer correct to four decimal places.)

(b) If the music firm wants 15 cuts to average 149 seconds less than 5% of the time, what must the population mean be, given that the standard deviation remains at 10 seconds? (Give your answer correct to one decimal place.)

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