Does being part of a support group affect the ability of people to quit smoking?A county health department enrolled 250 smokers in a randomized experiment.

100 participants were assigned to a group that used a nicotine patch and met weekly with a support group;

The other 150 received the patch and did not meet with a support group.

At the end of the study, 30 of the participants in the patch plus support group had quit smoking while only 25 smokers in the patch only group had quit smoking.

Answer the following 3 questions.

1)Make a two-way table presenting the results of this study

2) State appropriate hypotheses to test for difference in proportions of success in quitting smoking between those in a support group and those who weren't in a support group.State both the null and alternative hypotheses.

3) A 95% confidence interval for the difference in proportions is:( 0.017,0.249 ).Based on this confidence interval, what was the conclusion of the hypothesis test?