Be sure to check conditions; show how the formula was used; give the interval with endpoints carried out four places past the decimal; and, if and interpret completely in words relevant to the problem. Pandora, a music streaming service would like to know on average how many songs a day their premium users listen to on 4th of July weekend. They randomly choose 85 premium subscribers and record the number of songs the users listen to on 4th of July weekend. The sample mean was 123 with a sample standard deviation of 12. Find an appropriate 90% confidence interval for the mean number of songs listen to by Pandora Premium users on 4th of July weekend. Interpret the interval in the context of this