A husband and wife, ed and rina, share a digital music player that has a feature that randomly selects which song to play. a total of 3476 songs have been loaded into the player, some by ed and the rest by rina. they are interested in determining whether they have each loaded different proportions of songs into the player. suppose that when the player was in the random-selection mode, 38 of the first 59 songs selected were songs loaded by rina. let p denote the proportion of songs that were loaded by rina.