Question 10 The amount of coffee that people drink per day is normally distributed with a mean of 17 oum standard deviation of 4 ounces. 6 randomly selected people are surveyed. Round all answers places where possible. a. What is the distribution of X? X- N( b. What is the distribution of ? I- N c. What is the probability that one randomly selected person drinks between 16.5 and 18

A First Course in Probability (10th Edition)
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O 1hr54mins X
Question 10
Account
The amount of coffee that people drink per day is normally distributed with a mean of 17 ounces and a
standard deviation of 4 ounces. 6 randomly selected people are surveyed. Round all answers to 4 decimal
places where possible.
ashboard
Courses
a. What is the distribution of X? X N(
b. What is the distribution of ? I - N(
D00
alendar
c. What is the probability that one randomly selected person drinks between 16.5 and 18 ounces of
coffee per day?
d. For the 6 people, find the probability that the average coffee consumption is between 16.5 and 18
nbox
ounces of coffee per day.
e. For part d), is the assumption that the distribution is normal necessary? O YesO No .
f. Find the IQR for the average of 6 coffee drinkers.
istory
Q1 =
ounces
Q3 =
ounces
tudio
IQR:
ounces
Help
Submit Question
Transcribed Image Text:O 1hr54mins X Question 10 Account The amount of coffee that people drink per day is normally distributed with a mean of 17 ounces and a standard deviation of 4 ounces. 6 randomly selected people are surveyed. Round all answers to 4 decimal places where possible. ashboard Courses a. What is the distribution of X? X N( b. What is the distribution of ? I - N( D00 alendar c. What is the probability that one randomly selected person drinks between 16.5 and 18 ounces of coffee per day? d. For the 6 people, find the probability that the average coffee consumption is between 16.5 and 18 nbox ounces of coffee per day. e. For part d), is the assumption that the distribution is normal necessary? O YesO No . f. Find the IQR for the average of 6 coffee drinkers. istory Q1 = ounces Q3 = ounces tudio IQR: ounces Help Submit Question
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