Inference about Comparing Two Populations - Inference about the Difference between Two Means: Independent Samples
3 important questions on Inference about Comparing Two Populations - Inference about the Difference between Two Means: Independent Samples
How do you call the weighted average of two sample variances?
Pooled variance estimator
How do you call the confidence interval for the difference between two means when the population variances are presumed, or tested to be, unequal?
Unequal-variances confidence interval estimator
What are the five factors That Identify the Unequal-Variances t-Test and Estimator of population mean 1 - population mean 2?
- Problem objective: Compare two populations
- Data type: Interval
- Descriptive measurement: Central location
- Experimental design: Independent samples
- Population variances: Unequal
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