Answer each part. If necessary, round your answers to the nearest hundredth. (a) Joe bought 13 pounds of rice for $7. How many pounds of rice did he get per dollar? pounds per dollar

(b) At Smith's Bike Rentals, it costs $29 to rent a bike for 6 hours. How many hours of bike use does a customer get per dollar? hours per dollar.

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.