acmillan Learning A study of a new type of vision screening test recruited a sample of 175 children age three to seven years. The publication provides the summary of the children's ages: "Twelve patients (7%) were three years old; 33 (19%), four years old; 29 (17%), five years old; 69 (39%), six years old; and 32 (18%), seven years old."1 Click to download the data in your preferred format. Excel Minitab14-18 Minitab 18+ JMP SPSS TI R Mac-TXT PC-TXT CSV Crunchlt! T. Yamada et al., "A new computer-based pediatric vision-screening test," Journal of AAPOS, 19 (2015), pp. 157-162. doi:10.1016/j.jaapos.2015.01.011.. What is the mean age in the study? You will need to either organize the data in a way that your technology will accept or do the computations by hand. If so, be sure to multiply each age by the number of children with that age in the numerator of the formula for the mean. (Enter your answer rounded to one decimal place.)