Situation: A student suspects that the data she collected for the research study does not represent the target population. Here are the data she collected.

16

20

22

25

26

27

29

30

30

32

34

30

37

42

35

The population mean is 27. Assuming normality in the target population, is the student's suspicion correct? Use a 90% confidence level.

For the solution, follow the following steps:

Step 1. Organize the data by using a table, then find the sample mean, sample variance, and the standard deviation.