Data on nail salons throughout the city of Los Angeles finds an average price of a manicure is $22.50 with a standard deviation of $2.10. Data resembles the normal curve. About what percentage of nail services cost less than $18? b. + + a 1. The z-score is 2. the corresponding area in the middle is 3. the percentage of manicures that cost less than $18 is__- %23

Data on nail salons throughout the city of Los Angeles finds an average price of a manicure is $22.50 with a standard deviation of $2.10. Data resembles the normal curve. About what percentage of nail services cost less than $18? b. + + a 1. The z-score is 2. the corresponding area in the middle is 3. the percentage of manicures that cost less than $18 is__- %23

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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