2. twenty teenagers were asked the question “how many hours of sleep do get a night? ”. the sample had a mean of 6.5 hours and a standard deviation of 0.75 hours. find the 95% confidence interval for the number of hours of sleep per night. show all your work the way we did in class!

Graham’s monthly bank statement showed the following deposits and withdrawals. -$25.20, $42.75, -$22.04, -$18.50, $74.11. part a if grahams baldness in the account was $37.86 at the beginning of the month,! 27/4! 2// the account balance at the end of the month? ? plz i will give you 100 points