A Researcher Wants to Determine Whether the Number of Minutes $$\chi ^ { 2 }$$

Multiple Choice

A researcher wants to determine whether the number of minutes adults spend online per day is related to gender. A random sample of 315 adults was selected and the results are shown below. Calculate the chi -square
Test statistic χ $$\chi ^ { 2 }$$ to determine if there is enough evidence to conclude that the number of minutes spent online
Per day is related to gender. $$\begin{array} { l | c c c c } & { \text { Minutes spent online per day } } \\\hline \text { Gender } & 0 - 30 & 30 - 60 & 60 - 90 & 90 + \\\text { Male } & 25 & 35 & 75 & 45 \\\text { Female } & 30 & 45 & 45 & 15\end{array}$$

A) 18.146
B) 19.874
C) 20.912
D) 21.231