Question

An experiment was conducted to see the effectiveness of two antidotes to three different doses of a toxin. The antidote was given to a different sample of participants five minutes after the toxin. Twenty-five minutes later the response was measured as the concentration in the blood. What can the researchers conclude with α = 0.01?

	Dose
Antidote	5	10	15
1	0.6 1.1 1.1	2.1 1.5 6.2	3.1 4.1 5.9
2	1.1 1.2 1.1	1.7 1.3 1.5	2.1 3.1 2.1

Compute the appropriate test statistic(s) to make a decision about H₀.
Antidote: critical value =   ; test statistic =  
Decision:  ---Select--- Reject H0 Fail to reject H0

Dose: critical value =   ; test statistic =  
Decision:  ---Select--- Reject H0 Fail to reject H0

Interaction: critical value =   ; test statistic =  
Decision:  ---Select--- Reject H0 Fail to reject H0


c) Compute the corresponding effect size(s) and indicate magnitude(s).
Antidote: η² =   ;  ---Select--- na trivial effect small effect medium effect large effect
Dose: η² =   ;  ---Select--- na trivial effect small effect medium effect large effect
Interaction: η² =   ;  ---Select--- na trivial effect small effect medium effect large effect

Answer 1

Answer: