I am struggling with these questions and need to see all the work to answer these questions along with the answers.

3. A random sample of 21 adult male wolves from the Canadian Northwest Territories gave an average weight 98.6 pounds with estimated sample standard deviation $1 = 5.9 pounds. Another sample of 26 adult male wolves from Alaska gave an average weight 89.2 pounds with estimated sample standard deviation s2 = 7.8 pounds. At the 95% level of confidence, does it appear that the average weight of adult male wolves from the Northwest Territories is greater than that of the Alaska wolves? (Show your confidence in interval notation and show your interpretation) 4. A study considered the question, "Are you a registered voter?" Accuracy of response was confirmed by a check of city voting records. Two methods of survey were used: a face-to-face interview and a telephone interview. A random sample of 89 people were asked the voter registration question face to face. Of those sampled, seventy-six respondents gave accurate answers (as verified by city records). Another random sample of 81 people were asked the same question during a telephone interview. Of those sampled, sixty-nine respondents gave accurate answers. Assume the samples are representative of the general population. At the 95% level, do you detect any difference in the proportion of accurate responses from face- to-face interviews compared with the proportion of accurate responses from telephone interviews? (Show your confidence in interval notation and show your interpretation)