If A={1, 2, 3, 4, 5) and B={10, 11, 12, 13, 14), find AUB A. The empty set.
B. {1,2,3,4,5,10,11,12,13,14}
C. {6,7,8,9}

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.