The effectiveness of the drugs is measured by two response variables x1 and x2, reported in Table 1. Testthe hypothesis that the means of all the treatments are equal. Is the effectiveness of the drug given to thethird treatment group significantly different from the effectiveness of the drug given to to fourth treatmentgroup?1

In a study of five brands of pain relieving tablets P, Q, R, S and T, the brands were tested and ranked against each other as more or less effective per dose. The following results were obtained.I. P was more effective than Q.II. The effectiveness of R was less than that of S.III. T was the least effective brand tested.IV. Q and R were equally effective.V. The effectiveness of S was greater than that of Q.If the above statements are true, which of the following must also be true ?A P and S were equally effective B P was the most effective C S was the most effective D R was less effective than P

You obtained a significant test statistic when comparing three treatments in ANOVA. What is the conclusion?

Dose-response data was collected during the testing of drugs A and B. Drug B markedly decreases the efficacy of drug A and even increases the dose of drug A, So, drug B is:a.Non-competitive antagonistb.Partial agonistc.Inverse agonistd.Competitive antagonist

In a study, subjects are randomly assigned to one of three groups: control, experimental A or experimental B. After treatment, the mean scores for the three groups are compared. The appropriate statistical test for comparing these means is:

Part of an ANOVA table is shown below.  Source of VariationSum ofSquaresDegrees ofFreedomMeanSquare FBetween Treatments180  3  Within Treatments (Error)    Total48018  at .05 alpha, The conclusion of the test is that the meansGroup of answer choicesNo answer text provided.are always equal to fiftyare not equalmay be equal