Question

The pucks used by the National Hockey League for ice hockey must weigh between 5.5 and...

The pucks used by the National Hockey League for ice hockey must weigh between 5.5 and 6.0 ounces. The weights of pucks produced by a local manufacturer are normally distributed with a mean on 5.6 ounces and a standard deviation of 0.11 ounce.

a. Find the probability a puck produced by this manufacturer is between 5.5 and 6 ounces.

Math   Statistics-And-Probability   
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Answer #1

we have

mean=5.6 ounce and SD=0.11 ounce

Hence

Now

Probability that a puck produced by this manufacturer is between 5.5 and 6 ounces is,

   from Z table

Thus

Probability that a puck produced by this manufacturer is between 5.5 and 6 ounces is 0.8182

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