One- sample T

Descriptive statistics

N MEAN StDev. SE. MEAN

50. 21.680 3.873. 0.548

u: population mean

Test

Null hypothesis Ho:u

Alternative hypothesis H1:u

T-Value P-Value

1.24 0.110

Is there evidence that the students at this university are, on average, older than 21?

1) State the hypothesis, and define the parameter in context

2) State the value of the test statistic and p-value from the printout

Note that you do not have to actually calculate the test statistic, or adjust the p-value in any way. It is correct for the hypothesis being tested,

t=____

p-value=_____

3) briefly assess the strength of the evidence. Which of the following best explains the strength of the p-value?

Select one:

a. very strong evidence for Ha

b. strong evidence for Ha

c. Moderate evidence for Ha

d. Weak evidence for Ha

e. No evidence for Ha

4) State your conclusion in the context of the problem