Question 1206742: Based on a survey of 150 students at Long Lake High School, the average number of hours spent on social media per week is 30.5 with a margin of error of 3.25.
Part A. Give a range of values, based on this data, for the actual mean numbers of hours spent on social media.
Part B. If there are a total of 723 students at the high school, give a range of values for the total number of weekly hours spent by all students.
Answer by Theo(13342)   (Show Source):
You can put this solution on YOUR website! the average number of hours per student is 30.5.
if the margin of error is 3.25 hours, then the average number of hours per students could be as low as 30.5 minus 3.25 = 27.25 hours and as high as 30.5 + 3.25 = 33.75 hours.
with 150 students, the total number of hours spent on social media could be as low as 150 * 27.25 = 4087.5 and as high as 150 * 33.75 = 5062.5.
with 723 students, the total number of hours spent on social media could be as low as 723 * 27.25 = 19701.75 and as high as 723 * 33.75 = 24401.25.
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