The males of stalk-eyed flies have long eye stalks. The females sometimes use the length of these eye stalks to choose mates. Is the male's eye-stalk length affected by the quality of its diet? An experiment was carried out in which two groups of male "stalkies" were reared on different foods. One group was fed corn (considered a high quality food), and the other was fed cotton wool ( a food of substantially lower quality). Each male was raised singly and so represents an independent sampling unit. The eye spans (the distance between the eyes) were recorded in millimeters. The raw data is as follows: Corn diet: 2.15, 2.14, 2.13, 2.13, 2.12, 2.11, 2.10, 2.08, 2.08, 2.08, 2.04, 2.05, 2.03, 2.02, 2.01, 2.00, 1.99, 1.96, 1.95, 1.93, 1.89 Cotton diet: 2.12, 2.07, 2.01, 1.93, 1.77, 1.68, 1.64, 1.61, 1.59, 1.58, 1.56, 1.55, 1.54, 1.49, 1.45, 1.43, 1.39, 1.34, 1.33, 1.29, 1.26, 1.24, 1.11, 1.05 Carry out a permutation test with 10,000 samples to test whether the two population means are different. Alpha 0.05
The males of stalk-eyed flies have long eye stalks. The females sometimes use the length of these eye stalks to choose mates. Is the male's eye-stalk length affected by the quality of its diet? An experiment was carried out in which two groups of male "stalkies" were reared on different foods. One group was fed corn (considered a high quality food), and the other was fed cotton wool ( a food of substantially lower quality). Each male was raised singly and so represents an independent sampling unit. The eye spans (the distance between the eyes) were recorded in millimeters. The raw data is as follows:
Corn diet: 2.15, 2.14, 2.13, 2.13, 2.12, 2.11, 2.10, 2.08, 2.08, 2.08, 2.04, 2.05, 2.03, 2.02, 2.01, 2.00, 1.99, 1.96, 1.95, 1.93, 1.89
Cotton diet: 2.12, 2.07, 2.01, 1.93, 1.77, 1.68, 1.64, 1.61, 1.59, 1.58, 1.56, 1.55, 1.54, 1.49, 1.45, 1.43, 1.39, 1.34, 1.33, 1.29, 1.26, 1.24, 1.11, 1.05
Carry out a permutation test with 10,000 samples to test whether the two population
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