In Exercises 5-8, use the following information. If the weights of cement bags are normally distributed with a mean of 30 kg and a standard deviation of 2 kg, use the empirical rule to find the percent of the bags that weigh the following: 5. Between 26 kg and 34 kg 6. Between 28 kg and 32 kg 7. Less than 36 kg 8. More than 34 kg