According to a website, the mean weight of an adult member of a particular breed of dog is 151 pounds. Assume the distribution of weights is Normal with a standard deviation of 9 pounds. a. Find the standard score associated with a weight of 160 pounds. b. Using the Empirical Rule and your answer to part a, what is the probability that a randomly selected dog of this breed weighs more than 160 pounds? c. Use technology to conrm your answer to part b is correct. d. Almost all adult dogs of this breed will have weights between what two values? a. The standard score associated with a weight of 160 pounds is z = . (Type an integer or decimal rounded to two decimal places as needed.)