HW12
What’s the null hypothesis for this research question?
Group of answer choices
Ha: Anxiety levels are significantly lower after deep breathing
Ho: Anxiety levels before deep breathing ≤ anxiety levels after deep breathing
What’s the alternative hypothesis for this research question?
Group of answer choices
Anxiety levels are significantly lower after deep breathing
Anxiety levels are the same before and after deep breathing
What’s the best statistical test to use to analyze this research question?
Group of answer choices
Correlation coefficient
F statistic
Independent sample t-test
One sample z-test
One way ANOVA
Dependent samples t-test
The next step is to compute the test statistic. What is the t-statistic value (make sure you’re using the t-test formula for the dependent samples t-test). Round your answer to two decimal places.
What are the degrees of freedom?
Should you do a one-tailed or two-tailed test here? Think about whether the hypothesis is directional or non-directional!
Group of answer choices
two tailed
one tailed
What is the critical value?
Based on the t-value provided and the critical value, what is your decision about this research study?
