Probability that a randomly selected battery will last

Reference no: EM131397094

1. In the previous problem, how high must someone score to be in the top 5%? That is, determine c such that P(X > c) = 0.05.

2. A manufacturer of car batteries claims that the life of its batteries is normally distributed with mean µ = 58 months and standard deviation σ = 3. Determine the probability that a randomly selected battery will last at least 62 months.

Reference no: EM131397094

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