Majesty Video Production Inc. wants the mean length of its advertisements to be 24 seconds. Assume the distribution of ad length follows the normal distribution with a population standard deviation of 2 seconds. Suppose we select a sample of 15 ads produced by Majesty. What percent of the sample means will be greater than 22.50 seconds? (Round your z values and final answers to 2 decimal places.) What percent of the sample means will be greater than 22.50 but less than 25.50 seconds? (Round your z values and final answers to 2 decimal places.)