A null hypothesis is that the average pulse rate of adults is 70. For a sample of 64 adults, the average pulse rate is 71.8. A significance test is done and the p-value is 0.02. What is the most appropriate conclusion?
A) Conclude that the population average is 70.
B) Conclude that the population average is 71.8.
C) Reject the hypothesis that the population average is 70.
D) Reject the hypothesis that the sample average is 70.

Question

Quizplus · Accepted Answer

The p-value of 0.02 indicates that there is only a 2% probability of observing a sample average of 71.8 or more extreme if the population average truly is 70. This low p-value typically leads to rejecting the null hypothesis that the population average is 70, as it suggests the observed difference is statistically significant.

A Null Hypothesis Is That the Average Pulse Rate of Adults