A sample of 344 subscribers of time magazine shows the mean

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Reference no: EM13625986

A sample of 344 subscribers of time magazine shows the mean time spent using the internet is 14.4 hours per week, standard deviation of 7.5 hours, 95%confidnece interval, what was the standard error?

A-0.40

B-2.47

C-0.66

D-0.022

Reference no: EM13625986

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