ABCDEFGHIJKLMNOPQRSTUVWXYZAAABACADAEAFAGAHAIAJAKALAMANAOAPAQAR
1
2
3
NameJS1JS2JS3
Catherine
JaymeKatcherNanBradWayneTorreyMichaelEmilyJohnEricPedroRattrayShannonMike
4
Updates for NOT to occur when all resources absent (No reward for NOT)379358319599243693181182641294319319561476.0599490.0471
5
Updates for NOT to occur when notose present (Reward for NOT)359511671717276491614285255498495632345375.0328472.0578
6
7
8
Did a mutation conferring the NOT phenotype occur quicker when the environment rewards NOT?
YESNONONONOYESNONOYESNONONOYESYESYESYESNO
9
Number of students reporting NOT occurred first when all resources absent10
10
Number of students reporting NOT occurred first when notose present7
11
Percentage of students reporting NOT occurred first when notose present41%
12
p-value for the test using the binomial distribution if this is different from 50%0.83
13
Probability at least this many students would report NOT occurring first given chance alone
83%
14
Is this significantly different from 50% (i.e. mutation equally likely in both environments)?
no
15
So, do these data support the hypothesis that the environment affects which mutations occur?
NO!
16
17
Which scenario does the lab data support?
18
19
Compare these lab data to the three sheets of example datasets:
20
Option 1) Mutations are random with respect to the environment
21
Option 2) Mutations are more likely if notose is absent
22
Option 3) Mutations are more likely if notose is present
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100