Question: 1. Without doing any calculations, if the sample mean was 15 years instead of 10, what would happen to the margin of error? (Assume nothing

1.Without doing any calculations, if the sample mean was 15 years instead of 10, what would happen to the margin of error? (Assume nothing else in the problem has changed.)

a.The margin of error would increase

b.The margin of error would decrease

c.The margin of error would stay the same

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