Question

A researcher comparing two groups, calculates a p-value of .037. If alpha=.05, the statistical decision is to:

1) reject the null hypothesis
2) fail to reject the null hypothesis
3) reject the alternative hypothesis
4) fail to reject the alternative hypothesis

Answer 1

The statistical decision is to reject the null hypothesis.

Step-by-step explanation:

The statistical decision, based on the given p-value of 0.037 and the significance level (alpha) of 0.05, is to reject the null hypothesis.

A p-value is a measure of the evidence against the null hypothesis. If the p-value is less than or equal to the significance level, we reject the null hypothesis. In this case, the p-value of 0.037 is less than 0.05, so we reject the null hypothesis.