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Suppose the age that children learn to walk is normally distributed with mean 11 months and standard deviation 1.5 month. 11 randomly selected people were asked what age they learned to walk. Round all answers to 4 decimal places where possible.

Suppose the age that children learn to walk is normally distributed with mean 11 months and standard deviation 1.5 month. 11 randomly selected people were asked what age they learned to walk. Round all answers to 4 decimal places where possible.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 14PPS
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Suppose the age that children learn to walk is normally distributed with mean 11 months and standard deviation 1.5 month. 11 randomly selected people were asked what age they learned to walk. Round all answers to 4 decimal places where possible.
Transcribed Image Text:Suppose the age that children learn to walk is normally distributed with mean 11 months and standard deviation 1.5 month. 11 randomly selected people were asked what age they learned to walk. Round all answers to 4 decimal places where possible.
d. For the 11 people, find the probability that the average age that they learned to walk is between 9.5 and 12.5 months old. e. For part d), is the assumption that the distribution is normal necessary? No Yes f. Find the IQR for the average first time walking age for groups of 11 people. Q1 = months Q3 = months IQR: months
Transcribed Image Text:d. For the 11 people, find the probability that the average age that they learned to walk is between 9.5 and 12.5 months old. e. For part d), is the assumption that the distribution is normal necessary? No Yes f. Find the IQR for the average first time walking age for groups of 11 people. Q1 = months Q3 = months IQR: months
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