Compang for the produc tion f car batteries claims that the battery life has astandard deviation of no move than (0.9) year Standard deviation was (12) year Arandom Jample of(19) batteries was taken and is the compang claim true under the probability level 5.
Compang for the produc tion f car batteries claims that the battery life has astandard deviation of no move than (0.9) year Standard deviation was (12) year Arandom Jample of(19) batteries was taken and is the compang claim true under the probability level 5.
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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Transcribed Image Text:Company for the produc tion of car batHeries claims that
the battery life has astandard deviation of no more than
(0.9) year, Arandom Sample of (10) batteries was taken and
Standard deviation was (12) year
Is the compang claim true under the probabilityl
glevel
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