Lifetimes of a shipment, Testing indicates that the

Lifetimes of a shipment

Reference no: EM13103772

Testing indicates that the lifetimes of a shipment of disposable butane lighters are normally distributed with a mean of 1000 lights and a standard deviation of 100. What percentage of these lighters will:

1) light less than 700 times;

2) light more than 1100 times; and

3) light between 800 and 1100 times.

Reference no: EM13103772

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