50: Statistics for Research Page 7 of 8 Question 6. Parametric tests e.g. independent t-test and ANOVA have four assumptions. List those assumptions. Among those assumptions, normality is one of the important assumptions, which determines whether you will carry out parametric or non-parametric test. Write null and alternate hypotheses to test the normality assumption. Based on the following SAS outputs (see below), are the data normal? Provide rationales for your answer. (6 marks) Table 1. Descriptive statistics of the femur length of 25 Gorillas found in a rainforest of Brunei. Variable Mean Std Dev Median N Std Error Min Ma 25th Pct 75th Pct X Femur length 0.94 0.25 0.90 25 0.05 0.60 1.60 0.80 1.10 Tests for Normality Test Statistic p Value Shapiro-Wilk W 0.885292 Pr D W-Sq A-Sq