The annual number of passengers on flight Global Air 01 from Boston to Bermuda has been tabulated for four years. Year Season Sales 2018 Winter 42 2018 Spring 17 2018 Summer 30 2018 Fall 37 2019 Winter 135 2019 Spring 78 2019 Summer 120 2019 Fall 99 2020 Winter 123 2020 Spring 102 2020 Summer 123 2020 Fall 123 2021 Winter 147 2021 Spring 60 2021 Summer 114 2021 Fall 120 What is the slope of the trend equation obtained by linear regression? Round to two decimal digits. What is the intercept of the trend equation obtained by linear regression? Round to two decimal digits. What is the seasonal index for Winter? Round to two decimal digits. The quarter number for Winter of 2018 is 1. What is the quarter number for Winter of 2025? What is the trend based forecast for Winter of 2025. Round to a whole number. What is the seasonally adjusted trend based forecast for Winter of 2025? Round to a whole number. SUBMIT