A consumer magazine wants to compare lifetimes of ballpoint pens of three different types. The magazine takes a random sample of pens of each time and records the lifetimes (in minutes) in the table below. Do the data indicate that there is a difference in the mean lifetime for the three brands of ballpoint pens? Brand 1 Brand 2 Brand 3 260 181 238 218 240 257 184 162 241 219 218 213
A consumer magazine wants to compare lifetimes of ballpoint pens of three different types. The magazine takes a random sample of pens of each time and records the lifetimes (in minutes) in the table below. Do the data indicate that there is a difference in the mean lifetime for the three brands of ballpoint pens? Brand 1 Brand 2 Brand 3 260 181 238 218 240 257 184 162 241 219 218 213
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter9: Solving Quadratic Functions
Section: Chapter Questions
Problem 4CA
Related questions
Question
![A consumer magazine wants to compare lifetimes of
ballpoint pens of three different types. The magazine
takes a random sample of pens of each time and
records the lifetimes (in minutes) in the table below. Do
the data indicate that there is a difference in the mean
lifetime for the three brands of ballpoint pens?
Brand 1 Brand 2 Brand 3
260 181 238
218 240 257
184 162 241
219 218 213](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F74e87f12-11ef-4252-a6f4-f08b0e70af1c%2Fdeddf193-ce8a-4e4d-a766-8c19ab67a6fc%2Fxa5kuu5_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A consumer magazine wants to compare lifetimes of
ballpoint pens of three different types. The magazine
takes a random sample of pens of each time and
records the lifetimes (in minutes) in the table below. Do
the data indicate that there is a difference in the mean
lifetime for the three brands of ballpoint pens?
Brand 1 Brand 2 Brand 3
260 181 238
218 240 257
184 162 241
219 218 213
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