Mathematics, 04.10.2021 14:00, gaboalejandro833
Forever Power Company analysts conducted tests on the life of its batteries and those of a competitor (Brand X). They found that their batteries had a mean life (in hours) of
26.6, with a standard deviation of 4.3. Their results for a sample of 10 Brand X batteries were as follows: 13, 17, 20, 24, 26, 26, 29, 32, 34, 37.
a. Find the mean and standard deviation for the sample of Brand X batteries.
b. Which batteries have a more uniform life in hours?
c. Which batteries have the highest average life in hours?
Answers: 2
Mathematics, 21.06.2019 23:40, notearslefttocry14
What is the area of a rectangle with vertices (-8,-2), (-3,-2), (-3,-6), and (-8,-6)? units
Answers: 1
Forever Power Company analysts conducted tests on the life of its batteries and those of a competito...