A reseаrcher cоnducts аn experiment tо determine the relаtive effectiveness оf three medications designed to control LDL cholesterol levels in female patients with moderate-to-high cholesterol levels. Patients are recruited and randomly assigned to take one of the three medications over a 6-month period. At the end of the study, the LDL cholesterol level of each patient is measured. The researcher is concerned about the impact of the overall health of the patients on their LDL cholesterol levels; therefore, the body mass index (BMI) of each patient is also recorded as a covariate. SPSS was used to conduct an analysis of covariance (all underlying assumptions were checked and found to be valid). The tables below provide a portion of the SPSS output. Use the tables (as needed) to answer this question. Table 6A Table 6B Do the following: State the null and alternative hypotheses for the analysis of covariance test, make a decision about the null hypothesis, and write a conclusion statement. : The adjusted group means are equal for [1] groups. : The adjusted group means are different for [2] groups. P = [3], [4] the null hypothesis There is [5] evidence to conclude the adjusted group means are different for [6] groups. If appropriate, use the Bonferroni post hoc analysis to identify all pairs of adjusted treatment means that are statistically significantly different. Which of the following groups are statistically significantly different? [7]