Hello,
I need help with these problems as we didn't fully went over all the chapters in class with our teacher. At least we didn't cover it in enough depth and detail for me to be able to answer the questions without trouble:
Please find all the questions attached below as well as the data:
Diabetes (0 = no; 1 = yes) CKD_stage (Likert scale 0 - 5) egir (mL/min/g) 68 120 0 120 52 oo 82 69 120 oo 81 69 40 88 30 120 98 40 110 14 14 60 UT UT UT UT UT UT A O W N N N W N N U O O W U U O A O O UI N W N N O N N WOON 120 107 14 80 85 47 62 76 76 39 117 29 14 20 21 5 55 43ckd (0 = no; 1 = yes) PPPPPP POPOOOHOOHOOHHOHOOHOHOOOOOHOOOModule 04 Homework Problems Note: Please check the assignment description for your submission requirements. Part 1 - Consolidating Concepts (5 marks) 1. In what situations would you use a one sample t test versus a one sample 2 test? (1 mark) What is the main difference between the dependent and independent t test? Provide examples of when you would use a dependent vs. independent t test (2 marks) How do parametric tests differ from nonparametric tests? (1 mark) Describe the properties of a chi square distribution. (1 marks) Part 2 Application Using Statistical Software {15 marks) Research suggests that individuals with diabetes are at an increased risk for developing chronic kidney disease (CKD). To explore this relationship in a lab-based setting, rats were treated to induce diabetes, and followed over a period of 8 weeks to determine what proportion developed chronic kidney disease, and a number of biological markers were collected. Answer the questions using the MO4_CKD_Data file in the resources section. Note: the data for this scenario was adapted from a reai experimental study conducted in Dr. Adams' iab. Problem #1: Does the proportion of rats diagnosed with chronic kidney disease vary between diabetic rats and healthy controls? (5 marks) A) B) C) State your hypothesis statements and significance level. Describe the statistical analysis you chose and why. Describe the assumptions of this statistical test. Describe how you tested the assumptions and provide any relevant statistical output/values to support your conclusions about whether the assumptions were met. Use SPSS to calculate a test statistic and p value. Report your findings. State whether you would reject or retain the null hypothesis based on your ndings and provide 1 summary statement of your findings. Problem #2: Does chronic kidney disease stage (0 - 5) differ between diabetic rats and healthy controls? (5 marks) A) State your hypothesis statements and significance level. B) Describe the statistical analysis you chose and why. C) Describe the assumptions of this statistical test. Describe how you tested the assumptions and provide any relevant statistical output/values to support your conclusions about whether the assumptions were met. D) Use SPSS to calculate a test statistic and p value. Report your findings. E) State whether you would reject or retain the null hypothesis based on your ndings and provide 1 summary statement of your findings. Problem #3: Does kidney function as measured by estimated glomerular ltration rate (eGFR) differ between diabetic rats and healthy controls? (5 marks) A) State your hypothesis statements and significance level. B) Describe the statistical analysis you chose and why. C) Describe the assumptions of this statistical test. Describe how you tested the assumptions and provide any relevant statistical output/values to support your conclusions about whether the assumptions were met. D) Use SPSS to calculate a test statistic and p value. Report your findings. E) State whether you would reject or retain the null hypothesis based on your ndings and provide 1 summary statement of your findings
