You are conducting some behavioral research on the house mouse Mus musculus. Specifically, you want to see how noise affects their ability to complete a task, in this case running through a small maze to reach a reward (an apple slice). You have a group of 20 mice, and you run each of them through a maze under 4 different noise conditions: no noise, low-level noise, moderate-level noise, and high-level noise. You record the time (in seconds) it takes the mouse to reach the apple slice, and obtain these data.

	Noise Level
Mouse #	none	low	moderate	high
1	46	55	68	44
2	44	61	72	51
3	51	59	79	38
4	34	45	51	37
5	55	58	45	45
6	29	64	74	39
7	34	60	79	46
8	44	57	66	51
9	50	61	59	40
10	41	63	68	50
11	46	58	72	47
12	47	55	74	55
13	38	44	70	46
14	38	47	61	53
15	50	20	58	51
16	46	51	74	42
17	44	54	78	46
18	38	48	69	51
19	40	50	70	47
20	46	52	66	41

1. Which type of ANOVA should you use to analyze these data, and why should you choose this type of ANOVA?
2. Analyzeyourdata,beingsuretointerpretyourresultsandexplainyourreasonsfordeclaringthemsignificantornotsignificant.
3. Doyourdataobeytheassumptionofnormality?Besuretoprovideevidencetosupportyouranswer!Also,rememberthateachgroupmustbenormallydistributed.