So i am doing an analysis of my mowing crews. both size to see what is more efficient (1 or 2 guys). and pricing to see if I am pricing my lawns according to costs (or close enough) My hypothesis is that 1 man crews operate faster. I also hypothesize that the sq footage pricing method works very good for open spaces and very small lawns with a high enough y intercept (when x is the sq footage). That being said, how many times should i mow the grass before I start making conclusions. On 14 day lawns I will only get 14-16 samples and on weekly I'll get 30. on every 10 days I will get 18-30 up here. How big should my sample be to be significant or should I just use the whole years data? I realize that the more often the guys mow a yard the quicker they will be there per sq foot. so weekly mowing should cost a bit less than bi-weekly, but I am not quite there in my analysis. I have exactly 99 lawns on my analysis list (wish i had one more!!!) I plan to do as most guys say to do on this site. price my accounts according to production levels and work my price from costs instead of just assuming or using sq footage. I priced a couple properties this year on sq footage and one was at $160 and it costs me about $24 in labor to service while another was $87.50 and It costs $48 to service after 4 services. The first property I hate to lower the price and the last property I don't feel like keeping. So I will naturally increase the price of the second property when I finally determine what It costs me within a certain significance level. What do you all think?