Week 3 Discussion BUS3059

Two Sample Hypothesis Tests Comparing Tests Statistics To Critical Values Types of Two-Sample Hypothesis Testing Left-Tailed Test Null Hypothesis Alternative Hypothesis Decision Rule The population mean of the first sample is equal to or greater than the population mean of the second sample.

The population mean of the first sample is less than the population mean of the second sample.

Reject the null hypothesis if the Z test statistics are less than the critical value of the left tail.

Right-Tailed Test Null Hypothesis Alternative Hypothesis Decision Rule The population mean of the first sample is equal to or less than the population mean of the second sample.

The population mean of the first sample is greater than the population mean of the second sample.

Reject the null hypothesis if the Z test statistics are greater than the critical value of the right tail.

Two-Tailed Test Null Hypothesis Alternative Hypothesis Decision Rule The population mean of the first sample is equal to the population mean of the sample second.

The population mean of the first sample is not equal to the population mean of the second sample.

Reject the null hypothesis if the Z test statistics are less than the critical value of the left tail or greater than the critical value of the right tail.

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