If you statistically "t-test" the differences between the sample mean ( )scores of 30.50 and 21.25 using a "two-tailed" test, what would be the outcome
Added by Ramon C.
Step 1
50 and 21.25. - Alternative hypothesis (Ha): There is a significant difference between the sample mean scores of 30.50 and 21.25. Show more…
Show all steps
Close
Your feedback will help us improve your experience
Madhur L and 97 other Intro Stats / AP Statistics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Two samples each of size 20 are taken from independent populations assumed to be normally distributed with equal variances. The first sample has a mean of 43.5 and standard deviation of 4.1 while the second sample has a mean of 40.1 and standard deviation of 3.2. A researcher would like to test if there is a difference between the population means at the 0.05 significance level. What is the value of the test statistic?
Madhur L.
Two samples each of size 20 are taken from independent populations assumed to be normally distributed with equal variances. The first sample has a mean of 43.5 and standard deviation of 4.1 while the second sample has a mean of 40.1 and standard deviation of 3.2. A researcher would like to test if there is a difference between the population means at the 0.05 significance level. What is the pooled variance?
Recommended Textbooks
Elementary Statistics a Step by Step Approach
The Practice of Statistics for AP
Introductory Statistics
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD