Which one shows a 3% increase in an investment I = P(.03)^t I= P(3)^t I= P(1 +.03)^t I = P(1 -.03)^t​

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.