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Question 1: Observation Network Month Day Rating Fact Stars 1 BBS 1 1 15.6 0 1 2 BBS 1 7 10.8 1 0 3 BBS

Question 1:

ObservationNetworkMonthDayRatingFactStars
1BBS1115.601
2BBS1710.810
3BBS1714.101
4BBS1116.811
5BBS2114.311
6BBS2117.111
7BBS3115.800
8BBS3716.210
9BBS4712.601
10BBS5113.501
11BBS5715.600
12BBS5112.101
13BBS5115.810
14BBS971510
15BBS9716.300
16BBS9713.301
17BBS10710.801
18BBS10714.410
19BBS11714.411
20BBS11713.610
21ABN1714.600
22ABN129.801
23ABN1716.200
24ABN1212.800
25ABN171601
26ABN2718.901
27ABN2217.611
28ABN3719.511
29ABN3216.910
30ABN3716.301
31ABN3715.810
32ABN3717.101
33ABN3215.800
34ABN371610
35ABN3227.401
36ABN4214.200
37ABN4718.100
38ABN4215.200
39ABN4719.801
40ABN4715.510
41ABN4216.610
42ABN5716.310
43ABN5723.801
44ABN5216.810
45ABN9715.401
46ABN9214.700
47ABN9715.500
48ABN9214.710
49ABN10715.910
50ABN10713.810
51ABN10214.901
52ABN11712.901
53ABN11215.410
54ABN11714.502
55ABN12712.602
56ABN12211.800
57ABN12212.800
58ABN12716.801
59CBC1714.701
60CBC1111.310
61CBC2113.501
62CBC2712.910
63CBC3113.210
64CBC3712.810
65CBC4113.211
66CBC4713.501
67CBC5117.510
68CBC5711.600
69CBC5712.100
70CBC6115.610
71CBC6712.601
72CBC6111.800
73CBC7712.300
74CBC7114.211
75CBC8711.600
76CBC8113.310
77CBC8113.610
78CBC9112.401
79CBC9113.810
80CBC9711.900
81CBC10114.600
82CBC10115.811
83CBC10115.411
84CBC11113.101
85CBC11712.800
86CBC12115.100
87CBC12112.401
88CBC12119.110

  1. 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. Your answer should include the following:
    1. The null and alternative hypotheses (state in full sentences).
    2. The test results: Run the test using Excel and include the output table. Use a t-test assuming equal variances.
    3. What is your recommendation to the executives? Justify your answer referring to the relevant figures.
  2. Run a multiple regression where the dependent variable is ratings and the independent variables are star and fact. Use data from CBC only. CBC Management has several questions:
    1. Executives wish to know how much being fact-based or having one star contributes to a movies rating. What can you tell them about this?
    2. Are either, both, or neither of the independent variables significantly related to the ratings at 95% confidence? Justify your answers referring to the relevant figures.
    3. How well does this regression analysis explain the ratings? Should the executives count on the results from this analysis? Justify your answers referring to the relevant figures.

Question 2

image text in transcribed
Increased blood vessel formulation is a predictive factor in survival for a certain disease. One treatment is stem cell transplantation with the patient's own stem cells. The accompanying data table represents the microvessel density for pati who had a complete response to the stem cell transplant. The measurements were taken immediately prior to the stem cell transplant and at the time the complete response was determined. Complete parts (a) through (d) below. Click the icon to view the data table. H1: HD CU H1 : HD 20 X Patient Data The test statistic is tSTAT = 1.92 . (Round to two decimal places as needed.) Patient Before After The p-value is 0.057 . 157 276 (Round to three decimal places as needed.) 218 115 225 243 Since the p-value is greater than the value of a, do not reject Ho. There is insufficient evidence to conclude that the mean microvessel density is 362 251 NOUAWN 376 253 417 165 b. Interpret the meaning of the p-value in (a). Choose the correct answer below. 432 305 O A. The p-value is the probability of not rejecting the null hypothesis when it is false. B. The p-value is the probability of obtaining a sample mean difference of greater than or equal to the sample mean difference from the data if the Ime. O C. The p-value is the probability of rejecting the null hypothesis when it is true. Print Done O D. The p-value is the probability of obtaining a sample mean difference of less than or equal to the sample mean difference from the data if the pop c. Construct and interpret a 99% confidence interval estimate of the mean difference in microvessel density before and after the stem cell transplant. SHD SO Round to one decimal place as needed.)

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