Many people think that a national lobby's successful fight against gun control legislation ie reflecting the will of a minority of americans. a random sample of 4000 citizens vielded 2130 who are in favor of gun control legislation find the point estimate for estimating the proportion of all americans who are not in favor of gun control legislation round answer to 4 decimal places) a) 0.8779 b) 0.5325 c) 1.8779 d) 0.4675 e) 2.1390 5) a group of 39 randomly selected employees has a mean age of 22.a years with a sample standard deviation of 3.8 years assume the population has a normal distribution. round zscores to 4 decimal places) a (7 points) find the margin of error for the mean ? on a 96% c.1 (round margin of error to 2 decimal places) b. (3 points) construct a 96% confidence interval for the mean, (round cl to 2 decimal places)