What are the degree of freedom

Assignment Help Other Subject

Reference no: EM133643235

Problem: A professor is interested in examining how deep breathing can influence feeling of anxiety. She recruits participants in her class right before the final exam, when their feeling of anxiety would be high. She measures their current level of anxiety, instructed them to engage in 2 minutes of deep breathing, and then measures their anxiety again after they've completed the breathing. Below are the anxiety levels of each student before and after deep breathing. Your job is to determine if their anxiety levels significantly decrease after deep breathing. What's the null hypothesis for this research question? What the alternative hypothesis for this research question? What's the best statistical test to use to analyze this research question? 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 sample t-test. What are the degree of freedom? Should you do a one-tailed or two-tailed test here? Think about whether the hypothesis is directional or non-directional? What is the critical value? Based on the t-value provided and the critical value, what is your decision about this research study?

Reference no: EM133643235

Questions Cloud

Provide a general reaction to the information presented : Provide a general reaction to the information presented by Dr. Black. Then, view this handout on family rolesEditSign and choose one role.

How have psychologists defined the concept nations : How have psychologists defined the concept nations? Compare and contrast different psychological factors which explain how nations are socially constructed.

Why are we able to discern the rapidly moving information : Why are we able to discern the rapidly moving information that we experience while driving down road even though it is moving far faster than we can process?

Explain how different types of assessment can be used : Explain how different types of assessment can be used in different ways to support different learning outcomes.

What are the degree of freedom : What are the degree of freedom? Should you do a one-tailed or two-tailed test here? Think about whether the hypothesis is directional or non-directional?

Do you have any experience with stress reduction techniques : Health and Well-Being, of the Psychological Science book, this is about stress reduction. Do you have any experience with any stress reduction techniques?

Concept of community oriented policing : The concept of Community Oriented Policing was launched to law enforcement agencies around the country in the early 1980's.

How did functionalists use consciousness to represent : How did functionalists use consciousness to represent their point of view to psychology? Why was functionalism criticized by the structuralists?

How does nil impact long-term wellbeing of student athletes : How does NIL impact the long-term wellbeing of student athletes, particularly from the perspective of their education and career value? Explain.

User Account

All Pages