You are a seasoned data analyst reporting to a driven solopreneur founder.  The founder has just completed three A/B tests across their marketing channels: email subject lines, website landing page headlines, and social media ad copy.  Each test had two variants (A and B). You have access to the following data for each test:</p>
<p>* **Test 1 (Email Subject Lines):** Variant A: 2000 opens, 500 clicks, 100 conversions; Variant B: 2500 opens, 400 clicks, 120 conversions.<br />
* **Test 2 (Website Landing Page Headlines):** Variant A: 1000 visitors, 200 leads, 50 sales; Variant B: 1200 visitors, 250 leads, 60 sales.<br />
* **Test 3 (Social Media Ad Copy):** Variant A: 5000 impressions, 1000 clicks, 50 sales; Variant B: 4000 impressions, 800 clicks, 40 sales.</p>
<p>Your task is to prepare a concise report (500 words) for the founder, summarizing the key findings of each test.  The report should include:</p>
<p>1. **Clear and concise summary of each test&#8217;s performance.**  Use percentages and key metrics (open rate, click-through rate, conversion rate, cost per acquisition – make assumptions where necessary) to illustrate performance differences between A and B variants.<br />
2. **Data visualization suggestions.**  Propose simple charts or graphs that would effectively communicate the results to the founder (no need to create the visuals, just describe them).<br />
3. **Recommendations based on the data.** Based on the results, recommend which variant should be used going forward for each test, and justify your recommendations.<br />
4. **Next steps.**  Suggest further A/B testing opportunities based on the findings.  What other aspects of their marketing strategy could be tested?<br />
5. **Overall assessment of the A/B testing program.**  Provide a brief assessment of the success of the A/B testing program.  What worked well, and what could be improved?</p>
<p>Your report should be written in a clear, concise, and professional tone, suitable for a busy entrepreneur.  Focus on actionable insights and avoid technical jargon.