Researchers were interested in two research hypotheses:

Hypothesis 1

Students who have a running/walking path (excluding a sidewalk) within 200m of where they live will engage in more hours of moderate-vigorous physical activity during the middle of the term (PA last week) compared to students who do not have a running/walking path within 200m of where they currently live.

Hypothesis 2

Students will participate in more hours of moderate-vigorous physical activity during the first week of term compared to during the middle of the term.

Your task is to address both research hypotheses by selecting the appropriate statistical analysis and drawing a conclusion. For both of the research hypotheses you need to complete the steps below. I would strongly recommend completing all of the steps for one hypothesis and then turn your attention to the second hypothesis.

Step 1.

a) Select and state the appropriate statistical analysis given the research hypothesis (1 mark x 2 = 2 marks).

b) Using JASP, produce appropriate frequency distribution tables of the data. (2 marks x 2 = 4 marks).

c) Is there problematic data? Explain your answer (1 mark x 2 = 2 marks).

Step 2.

a) State the null and alternative hypotheses (assume two-tailed, alpha = .05; 2 marks x 2 = 4 marks)

b) State the decision rule for the analysis if you were to conduct the statistical analysis by hand (2 marks x 2 =4 marks)

c) Using JASP, conduct the appropriate statistical analysis given the research hypothesis (two-tailed, alpha = .05). Include the JASP output of the t-table in your assignment write up.

d) Check and discuss the assumptions of the analysis you conducted (e.g., what were the assumptions based on the analysis? Were the assumptions met?; 5 marks x 1 + 2 marks x 1 =7 marks). Please include the JASP output for any assumption checks you did using JASP.

e) Write concluding statement based on your analysis (6 marks x 2 =12 marks).

f) Relate the result of the analysis to the research hypothesis (1 mark x 2 =2 marks).

Step 3.

a) Calculate and report the 95% confidence intervals for each sample mean in the analysis you conducted in step 2. Show the formula that you used to calculate the 95% confidence interval and the main values within the formula (e.g., the mean, standard error, t) (4 marks x 2 =8 marks).

b) Using JASP, create descriptive plot with 95% confidence intervals and include it in your assignment write up (1 mark x 2 =2 marks).

c) Based on your work in steps 3 a) and 3 b), do the intervals between samples overlap (1 mark x 2 =2 marks)? What do you think this overlap or lack of overlap means (2 marks x 2 =4 marks)?

• Kin students
• random sampling
• questionnaire

1. Is there a running/walking path (excluding a sidewalk) within 200m of where you currently live? -options were 'Yes' and 'No' -variable is labeled as 'path'
2. How many hours did you spend engaging in moderate-vigorous physical activity during the first week of term (Monday-Sunday)? -variable is labeled as 'PA first week'
3. How many hours did you spend engaging in moderate-vigorous physical activity in the last week (Monday-Sunday)? -variable is labeled as 'PA last week'

Frequency Tables Frequencies for path path Frequency Percent Valid Percent Cumulative Percent No 15 25.000 25.000 25.000 Yes 45 75 .000 75.000 100.000 Missing 0 0.000 Total 60 100.000 Frequencies for PA first week PA first week Frequency Percent Valid Percent Cumulative Percent 0 9 15.000 15.000 15.000 1.667 1.667 16.667 N 6.667 6.667 23.333 w 4 6.667 6.667 30.000 6 10.000 10.000 40.000 w 5.000 5.000 45.000 a 15.000 15.000 60.000 6.667 6.667 66.667 8.333 8.333 75.000 w 5.000 5.000 80.000 10 w 5.000 5.000 85.000 11 N 3.333 3.333 88.333 12 6.667 6.667 95.000 13 N 3.333 3.333 98.333 14 1.667 1.667 100.000 Missing 0.000 Total 60 100.000Frequencies for PA last week PA last week Frequency 0 8 1 1 2 2 3 6 4 1 1 5 2 6 4 7 5 8 2 9 3 10 5 1 1 4 12 3 14 4 Missing 0 Total 60 Percent 13.333 1.667 3.333 10.000 18.333 3.333 6.667 8.333 3.333 5.000 8.333 6.667 5.000 6.667 0.000 100.000 Valid Percent 13.333 1.667 3.333 10.000 18.333 3.333 6.667 8.333 3.333 5.000 8.333 6.667 5.000 6.667 Cumulative Percent 13.333 15.000 18.333 28.333 46.667 50.000 56.667 65.000 68.333 73.333 81.667 88.333 93.333 100.000 (