Question

Dress shoes of a specific style for women come in sizes ranging from 4 to 12. A retailer believes that this range of sizes is adequate for all but​ 5% of its female customers.

​(a) What normal model for sizes is consistent with the opinion of the​ retailer? (Assume that the model is centered on the given​ range.)

​(b) If the retailer uses a normal​ model, then should it order more shoes of sizes 5 and 6 or more shoes of sizes 10 and ​11?

​(c) Can a normal model possibly be the right model for the proportion of shoe sizes of the​ retailer's female​ customers?

(a) The normal model with μ = ____ and σ = ____ is consistent with the opinion of the retailer.

​(Round to the nearest integer as​ needed.)

Answer 1

Answer:

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