Eighteen undergraduate students were randomly selected from a university and their systolic blood pressure was tested. The sample mean and standard deviation were 126.4 mmHg and 11.0 mmHg respectively. What is the obtained t-score for this sample under the null hypothesis Ho: µ = 120?

-2.47

-2.01

2.01

2.47

Answer rating: 100% (QA)

x 1264 s 11 n 18 T... View the full answer