WEBVTT 00:00:06.080 --> 00:00:07.840 In an earlier module, 00:00:07.840 --> 00:00:12.510 we discussed the more common analytic methodologies used in business. 00:00:12.760 --> 00:00:15.387 Remember that most business problems are solved using 00:00:15.387 --> 00:00:17.730 correlation methodologies. 00:00:17.730 --> 00:00:19.920 Within the correlation methodologies, 00:00:19.920 --> 00:00:23.560 you'll most often bumped into testing and regression. 00:00:24.080 --> 00:00:27.920 While testing exposes the causal relationship between changes 00:00:27.920 --> 00:00:30.820 in a particular variable and the outcome. 00:00:30.820 --> 00:00:34.640 With fixed variables, regression is used to find correlations, 00:00:34.640 --> 00:00:37.360 on average, between different variables. 00:00:37.920 --> 00:00:41.160 We'll take a deeper dive into both testing and regression, 00:00:41.480 --> 00:00:46.120 explaining the what and the how, while focusing on important complications 00:00:46.120 --> 00:00:51.350 such as confounding variables, control variables, and significance. 00:00:51.440 --> 00:00:54.040 The most important part of this module 00:00:54.040 --> 00:00:56.600 is learning how to set up a good test. 00:00:57.040 --> 00:01:01.400 As marketers, we are responsible for explaining the return on the money 00:01:01.400 --> 00:01:02.720 we are spending. 00:01:02.720 --> 00:01:05.920 We also have to understand the right mix of media, 00:01:05.920 --> 00:01:09.680 and stay ahead of trends and new ways to reach consumers. 00:01:09.680 --> 00:01:12.440 A solid testing methodology enables 00:01:12.440 --> 00:01:16.030 easy comparison and constant innovation. 00:01:16.520 --> 00:01:19.000 As your assignment, you'll be asked to answer 00:01:19.000 --> 00:01:22.040 the questions for a sample media mix analysis. 00:01:22.600 --> 00:01:25.960 The analysis will show the impact of different forms of media, 00:01:26.240 --> 00:01:28.960 and you will answer questions about media performance, 00:01:29.280 --> 00:01:32.200 finally recommending a new media strategy. 00:01:32.680 --> 00:01:33.700 Good luck.