CH 21 Q3. Please answers parts A, C, and C. Thanks.

a) Let p, be the sample proportion of dogs with lymphoma from homes where herbicides were used regularly and p2 be the sample proportion of dogs with lymphoma from homes where no herbicides were used. The standard error of the difference in the two proportions SE(P, - P2) = J. (Round to four decimal places as needed.) b) Create a 90% confidence interval for the difference between the two proportions, P1 - P2. (Round to three decimal places as needed.) c) Select the correct choice below and fill in the answer boxes to complete your choice. (Use ascending order. Round to three decimal places as needed.) O A. There is 90%confidence that the lymphoma rate of dogs is greater in homes where herbicides are used is greater by an amount from to O B. There is 90%% confidence that the lymphoma rate in samples of dogs from homes where herbicides are used will be greater by an amount from to C. There is 90% confidence that the lymphoma rate of pets is greater in homes where herbicides are used is greater by an amount from toIn 1992, researchers investigated the effect of weed-killing herbicides on house pets. They examined 601 dogs from homes where herbicides were used regularly, diagnosing malignant lymphoma in 420 of them. Of the 112 dogs from homes where no herbicides were used, only 20 were found to have lymphoma. a) What is the standard error of the difference in the two proportions? b) Create a 90% condence interval for this difference. c) State an appropriate conclusion