HLTH 1014 Evidence in Health: Tutorial Week 9 Worksheet 1 Workbook Activity: Inferential Statistics 1. Complete the following questions from the information below. Table 1 provides resmts for whether a new diabetes medication can lower HbAlc (measure of blood glucose levels for the previous three months) and FPG (fasting plasma glucose is a measure of blood glucose at that moment the sample is taken). The clinical trial was 16 weeks long. Table 1. Effectiveness of diabetes treatment Baseline 7.40 (1.37) 7.69 (1.61) p = 0.60 I-EbAlc 0.13 (-0.35 0.60) (A) 16 weeks 7.29 (1.29) 7.66 (1.86) Baseline 8.36 (2.71) 8.72 (2.89) FPG 0.03 (.090 0.96) p = 0.95 (mmol/L) 16 weeks 8.49 (2.56) 8.79 (3.18) Answer the following questions from Table 1. 1. What does \"11\" represent? . What was the average HbAlc level at baseline in the placebo group? Is this a descriptive or inferential statistic? . What was the variation in the data at baseline in the placebo group? Is this a descriptive or inferential statistic? 4. In the diabetes treatment group, the 16 week results are \"3.66 (1.86). Explain what these numbers mean. . Did people in the placebo group, on average, experience an improvement in their diabetes, as measured by HbAlc? . What does the 95% condence (95% CI) interval mean? Is this a descriptive or inferential statistic? . Give an example from Table 1 of a within-group difference. . Give an example from Table 1 of a between-group difference . What is more important in a clinical trial- the difference within a group or between groups? Why is this? 10. What does \"p\" represent? 11. What is the p- value for differences between groups for FPG? 12. Are the differences between groups for FPG statistically signicant