A) Wildlife conservationists studying grizzly bears in the United States found that the mean weight of 25 adult males was 600 pounds with a standard deviation of 90 pounds. Construct and interpret a 98% confidence interval for the mean weight of all adult male grizzly bears in the United States. Assume that the weights of all adult male grizzly bears in the United States are normally distributed. Round to one decimal place.

B)Thirteen out of 147 randomly selected faculty members who were surveyed at a community college know sign language. Construct and interpret a 90% confidence interval for the proportion of all faculty members at the community college who know sign language.Round to one decimal place.