CHi square

Evan claims that 15% of computer gamers have played "Team Fortress 2", and 35% have played "World of Warcraft". Evan's brother is skeptical of those figures and decides to do some research. He discovers that 60 of the 200 computer gamers he polls have played "Team Fortress 2", and 90 have played "World of Warcraft".

1. Create a table to organize the data and prepare for hypothesis testing.

2 What would be H0 and H1?

3. What would be the 2 statistic for the observed data?

5. How many degrees of freedom are there in the variable "played game"?

Please send me answer ASAP