Question

Drought (count)	Population (in billions)
0	2.91
0	2.96
1	3.02
1	3.08
0	3.13
1	3.19
7	3.26
7	3.32
9	3.39
5	3.46
7	3.53
10	3.61
2	3.68
7	3.76
7	3.83
2	3.91
4	3.99
1	4.06
6	4.14
16	4.21
9	4.29
11	4.36
14	4.44
13	4.52
13	4.60
32	4.68
8	4.77
3	4.85
4	4.94
15	5.03
17	5.13
7	5.22
12	5.31
18	5.40
12	5.49
9	5.57
13	5.65
6	5.74
6	5.82
18	5.89
20	5.97
23	6.05
27	6.13
22	6.20
25	6.28
14	6.36
11	6.44
20	6.52
9	6.60
11	6.68
16	6.76
18	6.85
17	6.93
17	7.01
19	7.10
9	7.18
18	7.27
26	7.35
14	7.43

Test the following hypotheses (show all the steps and clearly state your conclusions) at the 95% level of confidence

1. Variable: Drought (Count): As precipitation patterns change under changing climate, drought is expected to increase. Have drought events since 1958 been significantly different from 12 events?
2. Variable: Population (in billions): The global carrying capacity for human population is expected to be somewhere between 2 and 9 billion people. Test a hypothesis that human population has been around the expected carrying capacity (5.5 billion people)?

Answer 1