Null and Alternative Hypothesis Practice

Front

What is the null hypothesis (H0)?

Back

The null hypothesis (H0) is a statement that there is no effect or no difference, and it serves as the default assumption in hypothesis testing.

Front

What is the alternative hypothesis (Ha)?

Back

The alternative hypothesis (Ha) is a statement that indicates the presence of an effect or a difference, opposing the null hypothesis.

Front

In hypothesis testing, what does a statement of equality represent?

Back

A statement of equality typically represents the null hypothesis, indicating no change or effect.

Front

What symbol is used to denote the null hypothesis?

Back

H0

Front

What symbol is used to denote the alternative hypothesis?

Back

Ha

Front

If a sales rep claims the average ounces in a can of soda is no more than 12.2 ounces, what is the null hypothesis?

Back

H0: @@ u \\le 12.2@@ (the average is less than or equal to 12.2 ounces).

Front

If a sales rep claims the average ounces in a can of soda is no more than 12.2 ounces, what is the alternative hypothesis?

Back

Ha: @@ u > 12.2@@ (the average is greater than 12.2 ounces).

Front

What is the null hypothesis for Dunkin' Donuts' claim that 75% of Americans prefer Dunkin' over Starbucks?

Back

Front

What is the alternative hypothesis for Dunkin' Donuts' claim that 75% of Americans prefer Dunkin' over Starbucks?

Back

Front

What does a two-tailed test imply in hypothesis testing?

Back

A two-tailed test implies that the alternative hypothesis is testing for the possibility of an effect in two directions (greater than or less than).