The nutrition label on a bag of potato chips says that a one-ounce (28 gram) serving of potato chips has 133 calories and contains ten grams of fat, with three grams of saturated fat. A random sample of 35 bags yielded a sample mean of 134 calories with a standard deviation of 17 calories. Assume that we have verified the independence, sample size, and skew conditions are satisfied. What is the Z score (report your answer to 2 decimal places)?