(SOLVED) College Board AP Classroom Unit 7 Progress Check

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Question

College Board AP Classroom Unit 7 Progress Check: MCQ Part A Anjal Yadav Question 5 A recent study of 1.215 randomly selected middle school students revealed that the average number of minutes they spent completing homework during the school week was 180 minutes with a standard deviation of 45 minutes. Which of the following is the standard error in minutes of the sampling distribution of the mean number of minutes spent on homework per week for all middle school students? 1,25 Suo С 1321 1.96 ()

College Board
AP Classroom
Unit 7 Progress Check: MCQ Part A
Anjal Yadav
Question 5
A recent study of 1.215 randomly selected

Expert Answer

$Here,\nn = 1215\nSample Bize\nSample Mean\n180\nstandard deviation (3) = 45\nThen standard\neyyor\nof sampling\ndistribution of\nSample$