T. j. saw a commercial that claimed covering a cut with an adhesive bandage will the wound heal faster. he decides to design an experiment to test this claim. for his experiment, t. j. finds two friends with cuts on their hands. one friend covers her cut with an adhesive bandage, while the other leaves his cut uncovered. they make observations about each cut every morning until they both heal. if the wound that was covered with the adhesive bandage heals in less time than the one that was not covered, t. j. will conclude that using an adhesive bandage a wound heal faster. (a) identify three variables that were not specifically controlled in the experimental design. (b) for each of these variables, describe how they might have affected the outcome of t. j.’s experiment. (c) for each of the variables listed, suggest a way to better control them if the experiment were to be repeated.

The table shows population statistics for the ages of best actor and best supporting actor winners at an awards ceremony. the distributions of the ages are approximately bell-shaped. compare the z-scores for the actors in the following situation. best actor best supporting actor muequals42.0 muequals49.0 sigmaequals7.3 sigmaequals15 in a particular year, the best actor was 59 years old and the best supporting actor was 45 years old. determine the z-scores for each. best actor: z equals best supporting actor: z equals (round to two decimal places as needed.) interpret the z-scores. the best actor was (more than 2 standard deviations above more than 1 standard deviation above less than 1 standard deviation above less than 2 standard deviations below) the mean, which (is not, is) unusual. the best supporting actor was (less than 1 standard deviation below more than 1 standard deviation above more than 2 standard deviations below more than 1 standard deviation below) the mean, which (is is not) unusual.

(05.02)a farmer has decided to divide his land area in half in order to plant soy and corn. calculate the area of the entire area so he knows how much soil is needed. a parallelogram with a height of 6 yards and side length 9 yards. the height forms a triangle with the slanted side of the rhombus with a base of 2.5 yards. rhombus is split into a soy half and a corn half. each bag of soil covers 40 square yards. how many bags should the farmer purchase?

Which graph represents the linear function below? y-4= (4/3)(x-2)