What is the test statistic, the degrees of freedom and the resulting p-value from the t-test that tested whether population mean change in salivary cotinine between baseline to 5th annual visit was different from 0

step-by-step explanation:

6.48/4 4 goes into 6.48 1.62 times

moderators are

answer: 1.06 km per sec

step-by-step explanation:

39.6 m=63.72 km

60 min in an hour so 63.72/60=1.06

t= half of the arc subtended by t.

r= half of the arc subtended by r.  

t+r= half of the arc subtended by t + half of the arc subtended by r= half of 360=180

step-by-step explanation: