Most important here is finding target customers. Take time to find the places your target customers are (online) and niche it down as much as possible. Agree on this beforehand with your group.
*Evidence Strength is the expected value of evidence the experiment will obtain. Measure this against the time/cost estimation to decide which experiments to undertake. Rating is between 1-5 and this is a rough estimate. Your business situation and market is unique. For more help or advice get in touch.