In: Statistics and Probability
Dental Anxiety Study: Study of adults who completed the Dental
Anxiety Scale scored from 0
(no anxiety) to 25 (extreme anxiety). The Summary statistics for
the scores of 20 adults who
completed the questionnaire are x̅= 11.9 and s = 3.8
Conduct a test of Hypothesis to determine whether the mean anxiety
scale score for the
population of College students differs from μ = 14. Use p-value
t test hypothesis calculation.
Here level of significance (α) not given so, by default we assume it as 0.05. We assume the same when alpha not given .