A 95% confidence interval for mean Spent for the subpopulation of married males has which of the following limits? (Because of potential roundoff, choose the closest.) Click here to reference the data needed to answer the question. a. $1,660 to $2,086 b. $1,617 to $2,129 c. $1,577 to $2,168 d. $1,529 to $2,216

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

Needmax 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.

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field