HCD 300 Homework and Participation 6 Exam UPDATED QUESTIONS AND CORRECT ANSWERS

HCD 300 Homework and Participation 6
Exam UPDATED QUESTIONS AND
CORRECT ANSWERS
True or False, a finding can be statistically significant, but not clinically significant. - CORRECT
ANSWER True



In order to determine whether or not you will reject the null hypothesis, the test statistic should be
compared to which of the following?



- p-value

- Obtained value

- Critical value

- Significance level - CORRECT ANSWER Critical value



The process of hypothesis testing starts with the assumption that



- we do not know whether the null hypothesis or the alternative hypothesis is true

- the null hypothesis is true

- the null hypothesis is false

- the alternative hypothesis is true - CORRECT ANSWER the null hypothesis is true



Which of the following represents a nondirectional research hypothesis?



- H0: μ1 = μ2

- H0: μ1 > μ2

- H1: x bar1 ≠ x bar2

- H1: x bar1 > x bar2 - CORRECT ANSWER H1: x bar1 ≠ x bar2



Which of the following symbols represents the null hypothesis?

, - H1

- x bar1

- H0

- μ1 - CORRECT ANSWER H0



Which of the following symbols represents the first research hypothesis?



- μ1

- A1

- H1

- H0 - CORRECT ANSWER H1



A hypothesis is basically a(n)



- problem statement

- statement of the true effect

- educated guess

- estimate of the sample value - CORRECT ANSWER educated guess



True or False, the alternative hypothesis states that there is no difference/no effect. - CORRECT
ANSWER False



An endocrinologist has established group visits for her pregnant patients with diabetes. The average
fructosamine level for patients who did not attend shared visits is 195. She hypothesizes that the
average fructosamine level for patients who did attend shared visits will be lower. Would you use a
one-tail test or a two-tail test to test this hypothesis?



- One-tail

- Two-tail - CORRECT ANSWER one-tail