The three confidence intervals below were constructed from the same sample. One of them was computed at a confidence level of 90%, another at a confidence level of 95%, and another at a confidence level of 98%. Which confidence interval would be the one at the 98% confidence level?
a. 36.5 < < 49.5
b. 38.4 < < 47.6
c. 37.6 < < 48.4
d. cannot be determined

Which of the greatest common gcf of 32 and 48 a 16 b 96 c 8 d 32

Weak battery is considered to be a part of routine a. inspection b. wear and tear c. maintenance d. check

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?