Question
Consider the data with analysis shown in the following computer output: Level N Mean StDev A 6 86.320 4.914 B 5 76.167 6.555 C 6
Consider the data with analysis shown in the following computer output:
| Level | N | Mean | StDev |
|---|---|---|---|
| A | 6 | 86.320 | 4.914 |
| B | 5 | 76.167 | 6.555 |
| C | 6 | 80.000 | 9.230 |
| D | 7 | 69.333 | 6.154 |
| Source | DF | SS | MS | F | P |
|---|---|---|---|---|---|
| Groups | 3 | 981.29 | 327.10 | 6.92 | 0.002 |
| Error | 20 | 945.80 | 47.29 | ||
| Total | 23 | 1927.09 |
What is the pooled standard deviation? What degrees of freedom are used in doing inferences for these means and differences in means? Round your answer for the pooled standard deviation to two decimal places. The pooled standard deviation=
degrees of freedom =
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started
Sample Size Determination In Clinical Trials With Multiple Endpoints
Authors: Takashi Sozu, Tomoyuki Sugimoto, Toshimitsu Hamasaki, Scott R Evans
1st Edition
3319220055, 9783319220055
