Question
6. Consumer report gave the following information about the life (hour) size AA batteries in toys:,...
6. Consumer report gave the following information about the life (hour) size AA batteries in toys:, 3, 5, 7, 11, and 7,20(you need to calculate mean and standard deviation first) a) Find mean and Standard deviation b) Find 95% Confidence interval for life of the batteries.
Homework Answers
Answer #1
a)
from above:
mean =8.833
standard deviation =6.0800
from above: 95% confidence interval of mean =2.452 ; 15.215
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