How do I solve this?

Also does anybody know how to solve it with the ti 83/84 calculator?

A study of cats and dogs found that 29 of 50 cats and 19 of 50 dogs slept more than 10 hours per day. At the 0.05 level of significance, is there sufficient evidence to conclude that a difference exists between the proportions of cats and dogs that sleep more than 10 hours per day?