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Course: AP??/College Statistics?>?Unit 11
Lesson 5: Testing for the difference of two population means- Hypotheses for a two-sample t test
- Example of hypotheses for paired and two-sample t tests
- Writing hypotheses to test the difference of means
- Two-sample t test for difference of means
- Test statistic in a two-sample t test
- P-value in a two-sample t test
- Conclusion for a two-sample t test using a P-value
- Conclusion for a two-sample t test using a confidence interval
- Making conclusions about the difference of means
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P-value in a two-sample t test
You might need: Calculator,t table
Problem
A sociologist studying fertility in the United States and Canada wanted to compare how many babies, on average, women in each country have. The sociologist obtained a random sample of women from each country. Here is a summary of the number of babies for the women in each sample:
Number of babies | US | Canada |
---|---|---|
Mean | ||
Standard deviation | ||
Number of women |
They want to use these results to test versus . Assume that all conditions have been met.
What is the P-value associated with these sample results?