Which of the following represents a function? (2, 3). (4,3), (-2, -3).(-4,-3) (5, 1). (5,2). (5.3). (5.4) (-1,2).(-2, 1).(-1,-2).(-2.-1) (3.4).(-3,2).(3.8). (5.5)

Now, martin can reasonably guess that the standard deviation for the entire population of people at the mall during the time of the survey is $1.50. what is the 95% confidence interval about the sample mean? interpret what this means in the context of the situation where 95 people were surveyed and the sample mean is $8. use the information in this resource to construct the confidence interval.