The blenders produced by a company have a normally distributed life
The blenders produced by a company have a normally distributed life span with a mean of 8.2 years and a standard
deviation of 0.8 years. What warranty should be provided so that the company is replacing at most 6% of their blenders sold?
A) 9.0 years
B) 9.4 years
C) 7.0 years
D) 6.9 years