Then you actually execute the hypothesis. You add an advertisement to your campaign. You set up different posts or advertisements with the same texts, but with fewer images. In short, you work out a campaign that fits in with achieving your KPI.
Step 4. Let your experiments run long enough and give it space
Then you let your experiment run for a while. How long this is depends on the experiment. For a paid advertisement this could be two weeks, but for organic growth it could also be that you want to post two posts every day for a month. And of course it could also be that you want to post four times with an atmospheric image and four times with a product image, precisely to compare what does what (of course depending on the frequency at which you normally post).
After the test period, you analyze the results. Are they positive? Then you apply them to other buy phone number list campaigns. Then you continue analyzing: where are the opportunities and bottlenecks? Et voilà, you have returned to step 1 and the circle is complete. By the way, don't forget to really take the time to analyze your results. For example, take half a day a week to sit down for this. Block this time in your agenda.