Problems 20-23 are based on z scores. Assume all requirements are satisfied and =.05.

1. You visit an animal shelter and plan to adopt a dog. The employee tells you that the average cost of owning a dog is between $600 and $1100 per year, with a standard deviation of $300. You believe that the average cost of owning a dog is closer to $1500 per year. What is the probability that the employee is correct?