Consider the following data set: 14. 1 7.1 5.4 8.7 9.4 3.5 13.2 14.4 14.4 ON A 10.7 12.7 3.4 11.2 7.1 4.1 6.5 14.3 14.6 13 .1 14.5 14.1 9 .8 4.8 13.4 14.7 6 .8 12.7 Click here for the Excel Data File a. Construct the frequency distribution using classes of 3 up to 5, 5 up to 7, etc. Class Frequency 3 up to 5 5 up to 7 7 up to 9 9 up to 11 11 up to 13 13 up to 15 b. Construct relative frequency, cumulative frequency, and cumulative relative frequency distributions. (Round "Relative Frequency" and "Cumulative Relative Frequency" to 2 decimal places.) Class Relative Cumulative Cumulative Frequency Frequency Relative Frequency 3 up to 5 5 up to 7 7 up to 9 9 up to 11 11 up to 13 13 up to 15 c-1. How many of the observations are at least 7 but less than 9? Number of observations c-2. How many of the observations are less than 9? Number of observations d-1. What percentage of the observations are at least 7 but less than 9? (Round your answer to the nearest whole percent.) Percentage of observations % d-2. What percentage of the observations are less than 9? (Round your answer to the nearest whole percent.) Percentage of observations %