QUESTION 6 A company rates employee performance on a scale from 0 to 100, with 100 being the best. After reviewing historical data, employee performance has been found to be normally distributed, with a mean of 84 and a standard deviation of 5. What percentage of employees were rated greater than or equal to 70 but less than 90? a. 32.2% O b. 57.0% O c. 88.2% O d.93.7% QUESTION 7 A company rates employee performance on a scale from 0 to 100, with 100 being the best. After reviewing historical data, employee performance has been found to be normally distributed, with a mean of 84 and a standard deviation of 5. Only 20% of the employees received a rating higher than what value (rounded to the closest integer)? O a. 86 O b. 88 O c. 80 O d. 79