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Match each of the following experiments to their design: completely randomized design/randomized block/matched pairs. - A study randomly selects people over age 40 with high
Match each of the following experiments to their design: completely randomized design/randomized block/matched pairs. - A study randomly selects people over age 40 with high cholesterol to test whether a statin medication significantly increases their lipid levels. Because men and women react differently to statins, half of the men and half of the women are assigned the medication. The other half of each sex is assigned a placebo. - A game developer is testing whether to include a ticking sound during game play. 30 randomly selected subjects will be given the game and allowed to play as much as they like for a week. Whether or not the game includes a ticking sound will be randomly assigned to subjects. The amount of time played in a week will be measured to determine if the ticking sound increases the average time of gameplay. - 40 randomly selected participants are to take part in a taste test. One batch of cookies are baked using regular sugar and one batch with artificial sweetener. The cookies are arranged in a random order on a table and the participants are given a cookie to rate. Scores from the sugar cookies are compared to those of
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