please include the math to find answer

Google Home Speaker Market Sizing Google is trying to estimate the market size for the upcoming launch of a new Google Home smart speaker. In addition to the top-down procedure they used in the previous problem, they also collected consumer preference data to estimate the market size using a bottom-up approach. They created a sample of Amazon Echo users and a sample of Google Home users. They asked each group how likely they are to purchase the new Google Home speaker on a five-point scale ranging from Definitely not purchase to Definitely purchase. The data from the study are below; the information from the top-down estimation may still be relevant. Using a bottom-up, market- sizing approach, how many speakers should Google expect to sell? Response Google Home Users Definitely purchase Likely purchase Not sure 52% 27.2% Likely not purchase 22% Definitely not purchase 19% Sample sizes: 350 Google Home users, 425 Amazon Echo users Amazon Echo users 2% 3% .7% 2% 24% 48% Google Home Speaker Market Sizing Google is trying to estimate the market size for the upcoming launch of a new Google Home smart speaker. In addition to the top-down procedure they used in the previous problem, they also collected consumer preference data to estimate the market size using a bottom-up approach. They created a sample of Amazon Echo users and a sample of Google Home users. They asked each group how likely they are to purchase the new Google Home speaker on a five-point scale ranging from Definitely not purchase to Definitely purchase. The data from the study are below; the information from the top-down estimation may still be relevant. Using a bottom-up, market- sizing approach, how many speakers should Google expect to sell? Response Google Home Users Definitely purchase Likely purchase Not sure 52% 27.2% Likely not purchase 22% Definitely not purchase 19% Sample sizes: 350 Google Home users, 425 Amazon Echo users Amazon Echo users 2% 3% .7% 2% 24% 48%