A physiological psychologist is investigating the effect of a new drug -terpinol on motor skills. She suspects that the drug will affect the basal ganglia and block motion feedback control during fine positioning tasks. She also thinks sex will affect the outcome measure as well. She divides 40 experimental participants (20 males and 20 females) into independent groups by random assignment. Each group contains 5 males and 5 females and receives different amounts of the drug (0,1,5, and 10 mg respectively). She then asks the participants to drop 59 clothes pins into a small rectangular box. He records the number of times the participant dropping the clothes pin misses the container. The data are contained below. Can he conclude that sex and the drug effects motor skills from this analysis? Use an -level of 0.01.

What test is appropriate for this analysis?

State the Null Hypothesis(es):

State the alternative hypothesis/es:

Calculatethe obtained statistic(s):

Make a decision/s:

What does your decision mean? Describe what is going on in your plot here.

Attach the SPSS/Jamovioutput here. (inducing graph).

	0mg	1mg	5mg	10mg
Male	0	0	4	13
1	2	6	15
2	1	3	16
1	3	7	20
3	2	4	12
Female	1	0	8	17
4	2	12	15
0	1	14	13
0	0	10	12
1	0	8	17