(Solved): A study of long-distance phone calls made from General Electric Corporate Headquarters in Fairfield ...

A study of long-distance phone calls made from General Electric Corporate Headquarters in Fairfield. Connecticut, revealed the length of the calls, in minutes, follows the normal probability distribution. The mean length of time per call was \( 4.9 \) minutes and the standard deviation was \( 0.40 \) minutes. a. What is the probability that calls last between \( 4.9 \) and \( 5.6 \) minutes? (Round your \( z \) value to 2 decimal places and final answer to 4 decimal places.) b. What is the probability that calls last more than \( 5.6 \) minutes? (Round your z-value to 2 decimal places and final answer to 4 decimal places.) c. What is the probability that calls last between \( 5.6 \) and \( 6.5 \) minutes? (Round your \( z \) value to 2 decimal places and final answer to 4 decimal places.) d. What is the probability that calls last between \( 4.5 \) and \( 6.5 \) minutes? (Round your zvalue to 2 decimal places and final answer to 4 decimal places.)