Homework Help is Here – Start Your Trial Now!
Math
Statistics
The amount of coffee that people drink per day is normally distributed with a mean of 15 ounces and a standard deviation of 4 ounces. 10 randomly selected people are surveyed. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X-N 15 34 b. What is the distribution of a? N 15 1.2649 c. What is the probability that one randomly selected person drinks between 13.5 and 16 ounces of coffee per day? 0.2449 d. For the 10 people, find the probability that the average coffee consumption is between 13.5 and 1 ounces of coffee per day. 0.6676 e. For part d), is the assumption that the distribution is normal necessary? Yes No f. Find the IQR for the average of 10 coffee drinkers. Q1 = ounces ounces IQR: ounces

The amount of coffee that people drink per day is normally distributed with a mean of 15 ounces and a standard deviation of 4 ounces. 10 randomly selected people are surveyed. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X-N 15 34 b. What is the distribution of a? N 15 1.2649 c. What is the probability that one randomly selected person drinks between 13.5 and 16 ounces of coffee per day? 0.2449 d. For the 10 people, find the probability that the average coffee consumption is between 13.5 and 1 ounces of coffee per day. 0.6676 e. For part d), is the assumption that the distribution is normal necessary? Yes No f. Find the IQR for the average of 10 coffee drinkers. Q1 = ounces ounces IQR: ounces

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
Section10.4: Distributions Of Data
Problem 19PFA
See similar textbooks
icon
Related questions
Question
100%
Need help on q1 q3 ans IQR on both
The amount of coffee that people drink per day is normally distributed with a mean of 15 ounces and a standard deviation of 4 ounces. 10 randomly selected people are surveyed. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X - NO 15 b. What is the distribution of ? N 15 ✔ 1.2649 ✓ o c. What is the probability that one randomly selected person drinks between 13.5 and 16 ounces of coffee per day? 0.2449 d. For the 10 people, find the probability that the average coffee consumption is between 13.5 and 16 ounces of coffee per day. 0.6676 e. For part d), is the assumption that the distribution is normal necessary? Yes No d f. Find the IQR for the average of 10 coffee drinkers. Q1= ounces ounces ounces Hint: Hint
Transcribed Image Text:The amount of coffee that people drink per day is normally distributed with a mean of 15 ounces and a standard deviation of 4 ounces. 10 randomly selected people are surveyed. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X - NO 15 b. What is the distribution of ? N 15 ✔ 1.2649 ✓ o c. What is the probability that one randomly selected person drinks between 13.5 and 16 ounces of coffee per day? 0.2449 d. For the 10 people, find the probability that the average coffee consumption is between 13.5 and 16 ounces of coffee per day. 0.6676 e. For part d), is the assumption that the distribution is normal necessary? Yes No d f. Find the IQR for the average of 10 coffee drinkers. Q1= ounces ounces ounces Hint: Hint
The amount of pollutants that are found in waterways near large cities is normally distributed with mean 9 Opm and standard deviation 1.7 ppm. 7 randomly selected large cities are studied. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X - N( 9 1.7 ✔ b. What is the distribution of a? - N9 0.6425 ✓) o c. What is the probability that one randomly selected city's waterway will have less than 9.3 ppm pollutants? 0.5700 d. For the 7 cities, find the probability that the average amount of pollutants is less than 9.3 ppm. 0.6797 No e. For part d), is the assumption that the distribution is normal necessary? Yes f. Find the IQR for the average of 7 cities. Q1 = I ppm 03= Enter an integer or decimal number, accurate to at least 4 decimal places [more..] ppm IQR: ppm من میں
Transcribed Image Text:The amount of pollutants that are found in waterways near large cities is normally distributed with mean 9 Opm and standard deviation 1.7 ppm. 7 randomly selected large cities are studied. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X - N( 9 1.7 ✔ b. What is the distribution of a? - N9 0.6425 ✓) o c. What is the probability that one randomly selected city's waterway will have less than 9.3 ppm pollutants? 0.5700 d. For the 7 cities, find the probability that the average amount of pollutants is less than 9.3 ppm. 0.6797 No e. For part d), is the assumption that the distribution is normal necessary? Yes f. Find the IQR for the average of 7 cities. Q1 = I ppm 03= Enter an integer or decimal number, accurate to at least 4 decimal places [more..] ppm IQR: ppm من میں
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 5 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
SEE MORE TEXTBOOKS