Question: Problem 8. Outdoor Laptop Durable Devices Ltd. has just completed an extensive survey of all individuals who purchased their popular Outdoor laptop brand. The survey

Problem 8. Outdoor Laptop

Durable Devices Ltd. has just completed an extensive survey of all individuals who purchased their popular Outdoor laptop brand. The survey indicates that the time to first failure for this Outdoor brand is normally distributed with a mean of 50 months and a standard deviation of 12 months.

Suppose an Outdoor Laptop owner is randomly selected. Use StatCrunch to compute the following probabilities, starting with an untitled StatCrunch Datasheet.

a. Find the probability that the time to first failure will be at most 48 months. Copy and paste the graph and the probability to the Word file. [1 mark]

t. Find the probability that the time to first failure will be at least 36 months. Copy and paste the graph and the probability to the Word file. [1 mark]

u. Find the probability that the time to first failure will be more than 60 months. Copy and paste the graph and the probability to the Word file. [1 mark]

StatCrunch ans is needed.

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