Mathematics, 15.05.2021 08:40, Alexis3456829

# Margin of error: 0.07; confidence level: 90%; from a prior study, p-hat is estimated by 0.30.

Answers: 2

Mathematics, 21.06.2019 19:00, ale1910

Quick! a survey of 57 customers was taken at a bookstore regarding the types of books purchased. the survey found that 33 customers purchased mysteries, 25 purchased science fiction, 18 purchased romance novels, 12 purchased mysteries and science fiction, 9 purchased mysteries and romance novels, 6 purchased science fiction and romance novels, and 2 purchased all three types of books. a) how many of the customers surveyed purchased only mysteries? b) how many purchased mysteries and science fiction, but not romance novels? c) how many purchased mysteries or science fiction? d) how many purchased mysteries or science fiction, but not romance novels? e) how many purchased exactly two types of books?

Answers: 3

Mathematics, 21.06.2019 23:10, nekathadon

Frank is lending $1,000 to sarah for two years. frank and sarah agree that frank should earn a real return of 4 percent per year. instructions: a. the cpi (times 100) is 100 at the time that frank makes the loan. it is expected to be 113 in one year and 127.7 in two years. what nominal rate of interest should frank charge sarah?

Answers: 3

Margin of error: 0.07; confidence level: 90%; from a prior study, p-hat is estimated by 0.30....

English, 28.02.2020 00:57

Physics, 28.02.2020 00:57

Biology, 28.02.2020 00:57

History, 28.02.2020 00:57