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Tutorial
2 sample test for mean - INTRO
Example 1 - Ztest
This is a z-test due to a large sample size
Example 2 - Ztest
This is a z-test due to large samples
Example 3 - T-test
**This is a t-test due to a small sample size and an unknown standard deviation for the population
Example 4 (T-test)
**This is a t-test due to a small sample size and an unknown standard deviation for the population