Astudy of six hundred adults found that the number of hours they spend on social networking sites each week is normally distributed with a mean of 17 hours. the population standard deviation is 6 hours. what is the margin of error for a 95% confidence interval? 0.134 0.220 0.313 0.480

0.48

Step-by-step explanation:

Given : Mean = 17 hours

            Standard deviation = 6 hours

            n = population size =600

To Find: what is the margin of error for a 95% confidence interval?

Solution:

n= 600

z = 1.96 for a 95 % confidence interval;

Margin of error formula:

Substitute the values

Hence the margin of error for a 95% confidence interval is 0.48

idk

step-by-step explanation:

central angle of a triangle has the same measure as its intercepted arc.

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