A relief fund is set up to collect donations for the families affected by recent storms. A random sample of 400 people shows that 28% of those 200 who were contacted by telephone actually made contributions compared to only 18% of the 200 who received first class mail requests.

The 95% confidence interval for the difference in the proportions of people who make donations if contacted by telephone or first class mail is (____,____) (round the answers to 4 decimal places. Do not include the 0 before the decimal point.)

Is there significant statistical evidence that the percent of people who were contacted by telephone and made a contribution is larger than the percent of people who received first class mail requests and made a contribution? ____ Fill in the blank with one of these options: yes, no, not enough information