Simplify (x − 4)(x2 + 3x + 2). x3 − x2 + 14x − 8 x3 + 7x2 − 10x − 8 x3 − x2 − 10x − 8 x3 + 7x2 + 14x − 8

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.