A box office analyst seeks to predict opening weekend box office gross for movies. Toward this​ goal, the analyst plans to use online trailer views as a predictor. For each of the 66 movies, the number of online trailer views from the release of the trailer through the Saturday before a movie opens and the opening weekend box office gross​ (in millions of​ dollars) are collected and stored in the accompanying table. The​ least-squares regression equation for these data is Yi=−1.660+1.417Xi and the standard error of the estimate is SYX=19.349. Assume that the​ straight-line model is appropriate and there are no serious violations the assumptions of the​ least-squares regression model.

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A box office analyst seeks to predict opening weekend box office gross for movies. Toward this​ goal, the analyst plans to use online trailer views as a predictor. For each of the 66 movies, the number of online trailer views from the release of the trailer through the Saturday before a movie opens and the opening weekend box office gross​ (in millions of​ dollars) are collected and stored in the accompanying table. The​ least-squares regression equation for these data is Yi=−1.660+1.417Xi and the standard error of the estimate is SYX=19.349. Assume that the​ straight-line model is appropriate and there are no serious violations the assumptions of the​ least-squares regression model.

a. At the 0.01 level of significance, is there evidence of a linear relationship between online trailer views and opening weekend box office gross?
Determine the hypotheses for the test.
Ho
H,:
(Type integers or decimals. Do not round.)
Compute the test statistic.
The test statistic is tsTAT =
(Round to two decimal places as needed.)
Find the p-value.
The p-value is
(Round to three decimal places as needed.)
Reach a decision.
Ho. There is
evidence to conclude that there is a linear relationship between online trailer views and opening weekend box office gross.
b. Construct a 99% confidence interval estimate of the population slope, B,
The confidence interval issB, s
(Round to three decimal places as needed.)
Transcribed Image Text:a. At the 0.01 level of significance, is there evidence of a linear relationship between online trailer views and opening weekend box office gross? Determine the hypotheses for the test. Ho H,: (Type integers or decimals. Do not round.) Compute the test statistic. The test statistic is tsTAT = (Round to two decimal places as needed.) Find the p-value. The p-value is (Round to three decimal places as needed.) Reach a decision. Ho. There is evidence to conclude that there is a linear relationship between online trailer views and opening weekend box office gross. b. Construct a 99% confidence interval estimate of the population slope, B, The confidence interval issB, s (Round to three decimal places as needed.)
Opening Weekend
Box Office Gross
(Smillions)
Opening Weekend
Box Office Gross
(Smillions)
Online Trailer
Online Trailer
Views (millions)
Views (millions)
55.187
34.582
6.121
4.137
12.029
2.703
35.494
61.025
9.113
0.082
5.009
16.172
6.081
21.106
43.021
88.412
84.072
101.090
4.989
4.690
33.732
60.292
6.630
33.377
21.702
21.933
0.942
3.705
8.427
9.970
3.712
2.258
1.513
2.779
11.327
18.470
47.708
33.955
8.966
12.202
5.291
20.372
15.177
4.357
30.436
53.003
46.607
28.256
14.661
13.714
7.489
4.397
31.231
58.364
149.562
52.612
9.191
15.926
16.235
13.003
10.279
5.480
6.884
3.776
13.786
2.151
11.698
18.223
1.843
3.767
2.827
3.471
1.361
3.635
23.075
13.602
7.349
2.867
12.606
40.011
0.826
27.536
7.273
8.963
2.020
1.385
9.526
3.528
20.130
31.411
96.095
3.404
2.636
4.258
8.575
14.182
3.323
1.207
10.951
2.739
4.267
8.677
3.790
8.344
49.720
53.241
7.597
11.614
6.854
5.854
12.912
13.501
31.923
18.327
7.067
5.106
4.570
6.963
5.020
1.985
15.887
12.502
7.739
22.800
61.335
40.300
16.795
13.689
82.429
174.751
7.643
2.080
Transcribed Image Text:Opening Weekend Box Office Gross (Smillions) Opening Weekend Box Office Gross (Smillions) Online Trailer Online Trailer Views (millions) Views (millions) 55.187 34.582 6.121 4.137 12.029 2.703 35.494 61.025 9.113 0.082 5.009 16.172 6.081 21.106 43.021 88.412 84.072 101.090 4.989 4.690 33.732 60.292 6.630 33.377 21.702 21.933 0.942 3.705 8.427 9.970 3.712 2.258 1.513 2.779 11.327 18.470 47.708 33.955 8.966 12.202 5.291 20.372 15.177 4.357 30.436 53.003 46.607 28.256 14.661 13.714 7.489 4.397 31.231 58.364 149.562 52.612 9.191 15.926 16.235 13.003 10.279 5.480 6.884 3.776 13.786 2.151 11.698 18.223 1.843 3.767 2.827 3.471 1.361 3.635 23.075 13.602 7.349 2.867 12.606 40.011 0.826 27.536 7.273 8.963 2.020 1.385 9.526 3.528 20.130 31.411 96.095 3.404 2.636 4.258 8.575 14.182 3.323 1.207 10.951 2.739 4.267 8.677 3.790 8.344 49.720 53.241 7.597 11.614 6.854 5.854 12.912 13.501 31.923 18.327 7.067 5.106 4.570 6.963 5.020 1.985 15.887 12.502 7.739 22.800 61.335 40.300 16.795 13.689 82.429 174.751 7.643 2.080
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