I need the answers for all parts of the problem please

STA2023 Fall 2021 Sections OMo and IM4 E Question 7, 20.CE.29 HW Score: 59.51%, 10.12 of 17 points Save Part 1 of 3 Points: 0.25 of 1 In 1990, researchers investigated the effect of weed-killing herbicides on house pets. They examined 805 dogs from homes where herbicides were used regularly, diagnosing malignant lymphoma in 447 of them. Of the 133 dogs from homes where no herbicides were used, only 17 were found to have lymphoma. In a) What is the standard error of the difference in the two proportions? b) Create a 99% confidence interval for this difference. c) State an appropriate conclusion. Pla