Aquality control inspector will measure the salt content (in milligrams) in a random sample of bags of potato chips from an hour of production.

which of the following would result in the smallest margin of error in estimating the population mean salt content?

a) 90% confidence; n = 30

b) 90% confidence; n = 60

c) 95% confidence; n = 30

d) 95% confidence; n=60

Marcus needs to rewrite f(x) = x2 + 6x + 4 in vertex form.

What are the solution(s) to the quadratic equation x2 – 25 = 0? o x = 5 and x = -5ox=25 and x = -25o x = 125 and x = -125o no real solution

Someone answer asap for ! max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a. the median of max’s data is 250 b. more than half of the data points max recorded were 177 centimeters. c. a data point chosen at random is as likely to be above the mean as it is to be below the mean. d. every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.