Quantitative Market Research

I am seeking a skilled freelancer to assist with quantitative data collection for market research purposes. The specific types of data have not been defined, so I'm searching for someone with broad experience across sales revenue, website traffic, and customer demographics to ensure all bases are covered.

Key Requirements:
- Proven track record in qualitative and quantitative data collection
- Experience in data correlation and interpretation
- Excellent attention to detail
- Knowledge in market research and data analytics

I do not have a specific deadline for this task, however, a prompt yet thorough approach will be appreciated.