I need answer for the section B:

Before purchasing videoconferencing equipment, a company tested its current internal computer network. The tests measured how rapidly data moved through its network given the current demand on the network. Eighty files ranging in size from 20 to 100 megabytes (MB) were transmitted over the network at various times of day, and the time to send the files (in seconds) recorded. In the accompanying data, the time is given as the number of hours past 8

A.M.

on the day of the test. Use the transfer time as the response, with the file size and time of day as explanatory variables. Complete parts (a) through (f) below.

LOADING...

Click the icon to view the network transmission data.

Transfer_Time_(sec)	File_Size_(MB)	Hours_past_8
18.4	22	0
22.4	22	0.0625
11.7	22	0.125
23.5	22	0.1875
16.2	23	0.25
12.1	23	0.3125
15.8	26	0.375
9.9	26	0.4375
15.1	26	0.5
16.6	26	0.5625
12.9	27	0.625
18	27	0.6875
16.7	29	0.75
17.7	29	0.8125
19.5	29	0.875
9.1	29	0.9375
15.4	29	1
15	29	1.0625
11.3	30	1.125
12.8	30	1.1875
20.9	31	1.25
19.9	31	1.3125
15.8	31	1.375
10.5	31	1.4375
17.8	31	1.5
26.4	31	1.5625
16.6	39	1.625
21.9	39	1.6875
18.5	40	1.75
26	40	1.8125
24.5	50	1.875
11.2	50	1.9375
25.2	52	2
15.4	52	2.0625
23.1	54	2.125
27.4	54	2.1875
20.9	54	2.25
38.3	54	2.3125
23.8	56	2.375
27.4	56	2.4375
19.3	59	2.5
35.2	59	2.5625
20.4	59	2.625
24.6	59	2.6875
21.8	60	2.75
20.6	60	2.8125
17.4	60	2.875
31.9	60	2.9375
22.4	63	3
26	63	3.0625
25.9	64	3.125
32.1	64	3.1875
22.6	71	3.25
37.4	71	3.3125
25.3	73	3.375
19.1	73	3.4375
25.4	74	3.5
41.1	74	3.5625
28.9	75	3.625
32.3	75	3.6875
28.3	86	3.75
43.8	86	3.8125
25.4	89	3.875
43.4	89	3.9375
33.4	89	4
49.9	89	4.0625
28.6	89	4.125
45.8	89	4.1875
28.5	90	4.25
32.8	90	4.3125
35.6	91	4.375
45.6	91	4.4375
24.5	93	4.5
41.2	93	4.5625
33.3	95	4.625
35.6	95	4.6875
31.4	98	4.75
43.1	98	4.8125
35.5	99	4.875
52.6	99	4.9375