6) One sample has SS = 70 and a second sample has SS = 42. a) If n = 8 for both samples, find each of the sample variances, and calculate the pooled variance. Because samples are the same size, you should find that the pooled variance is exactly halfway between the two sample variances. b) Now assume that n = 8 for the first sample and n = 4 for the second. Again, calculate the two sample variances and the pooled variance. You should find that the pooled variance is closer to the variance for the larger sample.
6) One sample has SS = 70 and a second sample has SS = 42. a) If n = 8 for both samples, find each of the sample variances, and calculate the pooled variance. Because samples are the same size, you should find that the pooled variance is exactly halfway between the two sample variances. b) Now assume that n = 8 for the first sample and n = 4 for the second. Again, calculate the two sample variances and the pooled variance. You should find that the pooled variance is closer to the variance for the larger sample.
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 2E
Related questions
Topic Video
Question
6) One sample has SS = 70 and a second sample has SS = 42.
- a) If n = 8 for both samples, find each of the sample variances, and calculate the pooled variance. Because samples are the same size, you should find that the pooled variance is exactly halfway between the two sample variances.
- b) Now assume that n = 8 for the first sample and n = 4 for the second. Again, calculate the two sample variances and the pooled variance. You should find that the pooled variance is closer to the variance for the larger sample.
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 2 steps
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.Recommended textbooks for you
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL