The Appropriate Test to Compare One Sample to Another Sample

question 50

Multiple Choice

The appropriate test to compare one sample to another sample to see if one is greater than another in some way is called a(n) __________.

• A) regression
• B) two-sample t-test of a difference in means
• C) one-sample t-test of a difference in means
• D) chi-squared test of a difference in means

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Definitions:

Normal Approximation

Normal approximation is a statistical technique that involves using the normal distribution to approximate the distribution of sample means or sums, especially useful for large sample sizes.

Standardized Test Statistic

A measure used in statistical hypothesis testing, indicating how far a sample statistic deviates from its null hypothesis expected value, typically expressed as a z-score.

Two-Tail Test

is a statistical test that considers extreme values in both tails of the distribution to test for a non-specific alternative hypothesis.

Wilcoxon Rank-Sum Test

A non-parametric statistical test used to compare two independent samples to assess whether their populations differ in terms of their central tendency.