Mathematics, 21.05.2021 14:00 drelisech6467
An automobile battery manufacturer claims that its midgrade battery has a
mean life of 50 months with a standard deviation of 6 months. Suppose the
distribution of battery lives of this particular brand is approximately normal.
6a. On the assumption that the manufacturer's claims are true, find the
probability that a randomly selected battery of this type will last less than 48
months.
Your answer
6b. On the same assumption, find the probability that the mean of a random
sample of 36 such batteries will be less than 48 months.
Your answer
Answers: 1
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An automobile battery manufacturer claims that its midgrade battery has a
mean life of 50 months wi...
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