To determine the inverse of function f, change f(x) to y, switch
and y,
and solve for
The resulting function can be written as
f(x) = (x - 3.

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.