Question 13 and 14

As per the attached

Q13. What percentage of these pumps is expected to last between 2 and 3.5 years?( 4 marks)

A. 81.85% B. 13.59 % C. 95.44 % D. 78.19 %

Q14 If the company that sells these pumps wishes that no more than 5% of them are to be replaced, what must be the appropriate maximum warranty period

A. 22 months B 30 months C. 18 months D. 26 months

100 Questions 13 - 14 refer to the problem below. The lifetimes of a certain brand of pool pumps have an average span of 3 years with a standard deviation of 6 months Assume these lifetimes are normally distributed Comm be Fill & 13. What percentage of these pumps is expected to last between 2 and 3 5 years? (4 marks) * More A 81.85% B. 13.59% C. 95.44% D. 78.19% 14. If the company that sells these pumps wishes that no more than 5% of them are to be replaced what must be the approximate maximum warranty period? (4 marks) A 22 months B. 30 months C. 18 months D. 26 months forms SH ENG