researcher believes there is a difference in the mean number of days before visible results begin to show among three types of facial creams that reduce wrinkle li everal consumers are randomly selected and given one of the three creams. Each participant then recorded the number of days it took to see results. The results ar hown in the table. Based on these data, can you conclude that there is a difference between the mean number of days for these three creams? Use a 0.05 level of gnificance and assume the population distributions are approximately normal with equal population variances. Cream #1 14 10 11 12 12 Cream #2 11 11 11 20 11 Cream #3 16 17 15 21 19
researcher believes there is a difference in the mean number of days before visible results begin to show among three types of facial creams that reduce wrinkle li everal consumers are randomly selected and given one of the three creams. Each participant then recorded the number of days it took to see results. The results ar hown in the table. Based on these data, can you conclude that there is a difference between the mean number of days for these three creams? Use a 0.05 level of gnificance and assume the population distributions are approximately normal with equal population variances. Cream #1 14 10 11 12 12 Cream #2 11 11 11 20 11 Cream #3 16 17 15 21 19
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 11PPS
Related questions
Question
Step 2 of 2: Interpret this and decide to reject/fail to reject? Is there sufficient or insufficient evidence?
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 2 images
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Algebra
ISBN:
9781680331141
Author:
HOUGHTON MIFFLIN HARCOURT
Publisher:
Houghton Mifflin Harcourt
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Algebra
ISBN:
9781680331141
Author:
HOUGHTON MIFFLIN HARCOURT
Publisher:
Houghton Mifflin Harcourt
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL