Suppose that a manager is interested in estimating the average amount of money customers spend in her store. after sampling 36 transactions at random, she found that the average amount spent was $35.25. she then computed a 95% confidence interval to be between $31.84 and $38.66. which statement gives a valid interpretation of the interval?

a. the store manager is 95% confident that the average amount spent by the 36 sampled customers is between s31.84 and $38.66.
b. there is a 95% chance that the mean amount spent by all customers is between $31.84 and $38.66.
c. there is a 95% chance that a randomly selected customer will spend between $31.84 and $38.66.
d. the store manager is 95% confident that the average amount spent by all customers is between $31.84 and s3866

Anewspaper boy is trying to perfect his business in order to maximize the money he can save for a new car. daily paper sales are normally distributed, with a mean of 100 and standard deviation of 10. he sells papers for $0.50 and pays $0.30 for them. unsold papers are trashed with no salvage value. how many papers should he order each day and what % of the time will he experience a stockout? are there any drawbacks to the order size proposed and how could the boy address such issues?

Abeverage company puts game pieces under the caps of its drinks and claims that one in six game pieces wins a prize. the official rules of the contest state that the odds of winning a prize are is the claim "one in six game pieces wins a prize" correct? why or why not? 1: 6.

An attorney came to work on a saturday. when he signed in, he was advised by the morning security guard employed by the building management that he must be out of the building by 5 p. m., when it closes. however, he stayed past 5 p. m. to complete a brief that had to be filed on monday morning. at 5: 15 p. m., the afternoon security guard set the locks on all the doors of the building and left. because she was in a hurry, she did not check the sign-in sheet to make sure that everyone had signed out, contrary to mandatory procedures. when the attorney tried to exit 15 minutes later, he discovered that the doors were all locked and could not be opened from the inside. he used his cell phone to call for , and a supervisor from the building arrived and let him out shortly thereafter. if the attorney sues the building management for false imprisonment, is he likely to win?