The comfort widget company makes severtal different widgets

Assignment Help Basic Statistics

Reference no: EM13612505

The comfort widget company makes severtal different widgets. The smallest widget the company manufactures has a mean diameter of 3.5 inches with a standard deviation of .25 inches. The distribution of measurments for this widget's diameter is approximatly normal.

a) What is the probability that a single widget will have a diameter greater than 3.7 inches?

b) Describe the distrubution of sample mean diameters for samples of size 40.

c) What is the probability that a sample of size 40 small widgets will have a mean diameter greater than 3.7 inches?

All of this statistics stuff is really confusing the hell out of me.

Reference no: EM13612505

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