Mathematics, 25.10.2019 00:43 mackwackuwu
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.βs experiment. (c) for each of the variables listed, suggest a way to better control them if the experiment were to be repeated.
Answers: 2
Mathematics, 21.06.2019 15:30
Aiden drives to school and back each day. the school is 16 miles from his home. he averages 40 miles per hour on his way to school. if his trip takes 1 hour, at approximately what speed does aiden drive home?
Answers: 1
Mathematics, 21.06.2019 16:00
If myesha works overtime, she gets paid "time and a half" for every hour she works. in other words, for every hour over 40 hours myesha works each week, she gets her hourly pay plus half her hourly pay. what is myesha's pay per hour when she works overtime?
Answers: 1
Mathematics, 21.06.2019 20:00
He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean and standard deviation according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%
Answers: 3
Mathematics, 21.06.2019 20:30
Acompany produces packets of soap powder labeled βgiant size 32 ounces.β the actual weight of soap powder in such a box has a normal distribution with a mean of 33 oz and a standard deviation of 0.7 oz. to avoid having dissatisfied customers, the company says a box of soap is considered underweight if it weighs less than 32 oz. to avoid losing money, it labels the top 5% (the heaviest 5%) overweight. how heavy does a box have to be for it to be labeled overweight?
Answers: 3
T. j. saw a commercial that claimed covering a cut with an adhesive bandage will the wound heal fas...
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