Because the sample mean (from data for current hours of sleep per night I collected) needs to be compared to a distribution of all possible sample means (i. e., the sampling distribution), calculate the standard error (standard deviation of the sampling distribution) from the estimated population variance that you just calculated in the previous question.

Juanita wade's new car has an msrp of $28,902.11 including title and processing fees. the premier package which includes surround sound and dvd player costs three times the amount of the in-style package which includes leather seats and select wheels. the total cost of her new car was $34,290.08 which included the 6.5% sales tax. find the cost of the premier package to the nearest cent.