Consider the following table for different assets for 1926 through 2020 . a. What range of returns would you expect to see 68 percent of the time for long-term corporate bonds? Note: A negative answer should be indicated by a minus sign. Enter your answers from lowest to highest. Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16 . b. What about 95 percent of the time? Note: A negative answer should be indicated by o minus sign. Enter your onswers from lowest to highest. Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal ploces, e.9., 32.16