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7 Use the confidence interval (12,28) to find the sample mean and margin of error. a. mean=12, MoE=8 b. mean=16, MoE=4 c. mean=20, MoE=8 d.

Use the confidence interval (12,28) to find the sample mean and margin of error.

a. mean=12, MoE=8

b. mean=16, MoE=4

c. mean=20, MoE=8

d. mean=24, MoE=8

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