How much oil wells in a given field will ultimately produce is key information in deciding whether to drill more wells. Data was
collected estimating the total amount of oil recovered (in thousands of barrels) from 64 wells in the Devonian Richmond Dolomite area of the Michigan Basin. The data is in an Excel file on Canvas. Give a 95% confidence interval for the mean amount of oil recovered from all wells in this area.
DATA:
Oil
21.7
53.2
46.4
42.7
50.4
97.7
103.1
51.9
43.4
69.5
156.5
34.6
37.9
12.9
2.5
31.4
79.5
26.9
18.5
14.7
32.9
196
24.9
118.2
82.2
35.1
47.6
54.2
63.1
69.8
57.4
65.6
56.4
49.4
44.9
34.6
92.2
37
58.8
21.3
36.6
64.9
14.8
17.6
29.1
61.4
38.6
32.5
12
28.3
204.9
44.5
10.3
37.7
33.7
81.1
12.1
20.1
30.5
7.1
10.1
18
3
2
DATA:
Oil
21.7
53.2
46.4
42.7
50.4
97.7
103.1
51.9
43.4
69.5
156.5
34.6
37.9
12.9
2.5
31.4
79.5
26.9
18.5
14.7
32.9
196
24.9
118.2
82.2
35.1
47.6
54.2
63.1
69.8
57.4
65.6
56.4
49.4
44.9
34.6
92.2
37
58.8
21.3
36.6
64.9
14.8
17.6
29.1
61.4
38.6
32.5
12
28.3
204.9
44.5
10.3
37.7
33.7
81.1
12.1
20.1
30.5
7.1
10.1
18
3
2
1 answer:
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Given:
32 and 28 are the two numbers.
To find:
(a) The GCF of 32 and 28.
(b) Using the GCF, find the factor of (32-28).
Solution:
(a)
The factor forms of the given numbers are:
It is clear that, 2 and 2 are the common factors in both.
Hence, the GCF of 32 and 28 is 4.
(b)
Using the GCF we need to find the factor of (32-28).
Taking out the GCF, we get
Hence, .