Null hypothesis: The mean bike trips on Saturdays are the same or less than the mean of bike trips on Sundays in 4 selected months representing each season of the year.
Alternative hypothesis:  The mean bike trips on Saturdays are more than the mean bike trips on Sundays in 4 selected months representing each season of the year.
\(H_0:\ Sun\ -\ Sat\ \ge0\)
\(H_1:\ Sun\ -\ Sat\ <0\)