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Use the following data to justify the amount of time that you expect to assign for weekly homework to classes in grades K–4 and grades 5–8. National Survey of Teachers Concerning the Amount of Homework Assigned per Week k-4 (percentages) 5–8 (percentages) 0–30 min 48 8 31–60 min 27 21 61–90 min 13 26 91–120 min 8 24 2–3 hr 3 17 More than 3 hr 1 5 b. How might the survey data be misused to justify assigning at least 2 hr of homework per week?

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