You are the researcher and you develop a hypothesis It state

You are the researcher and you develop a hypothesis. It states that by providing relaxation therapy to a group of 75 smokers, you will reduce the number of cigarettes they smoke after eight weeks of therapy. You will take a baseline measurement before treatment to see how many cigarettes the participants currently smoke. You will want to take a follow-up measurement eight weeks after you measure smoking levels after you terminate the therapy to see if there are lasting effects from the independent variable. The obtained test statistic is 2.949

How many groups (K) are involved in this study________

How many participants do you have in the study n=_____

How many degrees of freedom are there _BG_____   _WG_____Total_____

What is the critical value/region of rejection base on an alpha level of .05_______

What is the correct test statistic_________

What is the independent variable_________

What is the dependent variable __________

Is this a one or two tailed test____________

Based on the obtained value, do you reject or fail to reject H0:______

State the reason you made your decision__________

Solution

You are the researcher and you develop a hypothesis. It states that by providing relaxation therapy to a group of 75 smokers, you will reduce the number of cigarettes they smoke after eight weeks of therapy. You will take a baseline measurement before treatment to see how many cigarettes the participants currently smoke. You will want to take a follow-up measurement eight weeks after you measure smoking levels after you terminate the therapy to see if there are lasting effects from the independent variable. The obtained test statistic is 2.949

( assuming before and after study, paired t test is used)

How many groups (K) are involved in this study =1

How many participants do you have in the study n= 75

How many degrees of freedom are there _BG_____   _WG_____Total   74

What is the critical value/region of rejection base on an alpha level of .05 : if t >1.666 reject H0

What is the correct test statistic 2.949

What is the independent variable: relaxation therapy

What is the dependent variable : number of cigarettes

Is this a one or two tailed test: one sided

Based on the obtained value, do you reject or fail to reject H0: reject H0

State the reason you made your decision : test statistic 2.949 > table value 1.666