The executives at CBC have four main areas in which they are interested: They want to see how they are doing in ratings against the other networks and how the ratings will continue to change in the upcoming months. They also want to know if hiring stars makes a difference and the impact of fact-based programming compared to hiring stars.

Remember that your audience is the management of CBC.

The executives wish to know if they should hire stars for their programs. To answer this question, run a hypothesis test to see if the ratings of shows with stars are higher compared to those without stars. Use the data for CBC movies only. Use 95% confidence.

Observation	Network	Month	Day	Rating	Fact	Stars
59	CBC	1	7	14.7	0	1
60	CBC	1	1	11.3	1	0
61	CBC	2	1	13.5	0	1
62	CBC	2	7	12.9	1	0
63	CBC	3	1	13.2	1	0
64	CBC	3	7	12.8	1	0
65	CBC	4	1	13.2	1	1
66	CBC	4	7	13.5	0	1
67	CBC	5	1	17.5	1	0
68	CBC	5	7	11.6	0	0
69	CBC	5	7	12.1	0	0
70	CBC	6	1	15.6	1	0
71	CBC	6	7	12.6	0	1
72	CBC	6	1	11.8	0	0
73	CBC	7	7	12.3	0	0
74	CBC	7	1	14.2	1	1
75	CBC	8	7	11.6	0	0
76	CBC	8	1	13.3	1	0
77	CBC	8	1	13.6	1	0
78	CBC	9	1	12.4	0	1
79	CBC	9	1	13.8	1	0
80	CBC	9	7	11.9	0	0
81	CBC	10	1	14.6	0	0
82	CBC	10	1	15.8	1	1
83	CBC	10	1	15.4	1	1
84	CBC	11	1	13.1	0	1
85	CBC	11	7	12.8	0	0
86	CBC	12	1	15.1	0	0
87	CBC	12	1	12.4	0	1
88	CBC	12	1	19.1	1	0