Question

Now, use a filter to select the trips that start from station ID 327, 426, and 3002. Is the average trip that starts from these three stations shorter or longer than 805 seconds? Is this difference statistically significant? Give the p-value and interpret it.

Start Station Id	Avg. Trip duration	Count of Trip duration	End Station Latitude	End Station Longitude
327	963	4,099	41	-74
426	1,021	7,795	41	-74
3002	1,004	5,209	41	-74

Answer 1

Following are the hypothesis under styds,

H0 There no difference in the average sec of the trip

H1 The average is less than 805

Using fillowfol values of t statistic and df and using t table

P values = 0.3727

Interpretation - at 5% level of significance we fail to reject H0 and hence, There no difference in the average sec from three locations and they are same as 805