report in Newsweek stated that the day-care cost per week in Boston is $109. If this figure is taken as the mean cost per week of day-care in Boston and if the standard deviation were known to be $20, find the probability that a sample of 50 day-care centers would show a mean cost of $100 or less per week

report in Newsweek stated that the day-care cost per week in Boston is $109. If this figure is taken as the mean cost per week of day-care in Boston and if the standard deviation were known to be $20, find the probability that a sample of 50 day-care centers would show a mean cost of $100 or less per week

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 19PFA

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Question

A report in Newsweek stated that the day-care cost per week in Boston is $109. If this figure is taken as the mean cost per week of day-care in Boston and if the standard deviation were known to be $20, find the probability that a sample of 50 day-care centers would show a mean cost of $100 or less per week

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