An industrial psychologist is investigating the effects of work environment on employee attitudes. A group of 20 recently hired sales trainees were randomly assigned to one of four different "home rooms" - five trainees per room. Each room is identical except for wall color. The four colors used were light green, light blue, gray and red. The psychologist wants to know whether room color has an effect on attitude, and, if so, wants to compare the mean attitudes of the trainees assigned to the four room colors. At the end of the training program, the attitude of each trainee was measured on a 60-pt. scale (the lower the score, the poorer the attitude). The data was subjected to a one-way analysis of variance. Give the null hypothesis for the ANOVA F test shown on the printout.
ONE-WAY ANOVA FOR ATTITUDE BY COLOR
◦ H
0: x
1 = x
2 = x
3 = x
4, where the x's represent the room colors
◦ H
0: p
green = p
blue = p
gray = p
red, where the p's represent the proportion with the corresponding attitude
◦ H
0: μ
green = μ
blue = μ
gray = μ
red, where the μ's represent mean attitudes for the four rooms
◦ H
0: μ
1 = μ
2 = μ
3 = μ
4 = μ
5, where the μ
i represent attitude means for the ith person in each room
Effects of PYY on Hunger
Many European Americans are involved in ethnic work, attempting to maintain an identity more precise ...
Stone Massage: Beneficial Effects, Therapeutic Uses, and Contraindications
Human impacts and the built environment
A system absorbs 623 J of heat while doing 457 J of work. What is the value of U?
Summary of the effects on transcription levels of different point mutations