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The proportion of sales less than $21,000 per month

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Reference no: EM13268419

The monthly average sales of the Smiling Ninja Computer Company may be approximated to a normal distribution curve. It has a mean of $22,000 and a standard deviation of $3,300. 

Drawing a curve for each question, calculate the proportions of the following: 

a.    The proportion of sales greater than $21,500 per month;

b.    The proportion of sales less than $21,000 per month;

The proportion of sales between $22,500 and $24,500


Attachment:- 244518_1_UIC-Quant-Methods-Assignment-S3-2012.doc

Reference no: EM13268419

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