Question

A necklace shop is sampling random women necks to make necklaces. Females normally have a circumference...

A necklace shop is sampling random women necks to make necklaces. Females normally have a circumference normally distributed mean of 40 cm and a standard deviation of 1.8 cm.

A.) In Excel: What percent of women have more than 42 cm?

B.) In Excel: What is the 90th Percentile of neck circumferences?

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Answer #1

=1-NORM.DIST(42,40,1.8, TRUE) WITH HA C D 1 x follow normal(40,1.8) (2x<x) dz LMHTHION MI 0.13326 HOME JUNI CE 4 p\x<x)=0.9 4=NORM.INV(0.9,40,1.8) C D E F i x follow normal(40,1.8) 2 p(x342) g files. 0.13326 4 p(x<x)=0.9 42.30679

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