A student hypothesized that girls in his class had the same

A student hypothesized that girls in his class had the same blood pressure levels as boys. The probability value for his null hypothesis was 0.15. So he concluded that the blood pressures of the girls were higher than boys\'. Which kind of mistake did he make Select one Type l error Type II error Type I and Type II error He did not make a mistake

Solution

Type I error.

The Null Hypothesis should be that there is no significant difference between the blood pressure of boys and girls. Since, the p-value=0.15 > 0.05, he should not have rejected the H₀. Rejecting the H₀ incorrectly is type I error.