Suggested languages for you:

Americas

Europe

Q.2.2

Expert-verifiedFound in: Page 703

Book edition
4th

Author(s)
David Moore,Daren Starnes,Dan Yates

Pages
809 pages

ISBN
9781319113339

Calculate the expected counts. Show your work

The expected count is,

$\begin{array}{|ccc|}\hline \text{Use Facebook}& \text{Main Campus}& \text{Common wealth}\\ \text{Several times a month or less}& 77.56& 53.44\\ \text{At least once a week}& 220.25& 151.75\\ \text{At least once a day}& 612.19& 421.81\\ \hline\end{array}$

The table is

The formula to compute the degree of freedom is:

Expected count $=\frac{\text{Row total}\times \text{Coloumn total}}{\text{Table total}}$

The expected count is$\begin{array}{|ccc|}\hline \text{Use Facebook}& \text{Main Campus}& \text{Common wealth}\\ \text{Several times a month or less}& \frac{1820\times 131}{3074}=77.56& \frac{1254\times 131}{3074}=53.44\\ \text{At least once a week}& \frac{1820\times 372}{3074}=220.25& \frac{1254\times 372}{3074}=151.75\\ \text{At least once a day}& \frac{1820\times 1034}{3074}=612.19& \frac{1254\times 1034}{3074}=421.81\\ \hline\end{array}$

94% of StudySmarter users get better grades.

Sign up for free