Question: 1. Given the following data, what is the lower bound of the confidence interval? Express your answer into 2 decimal places. Mean = 85 Standard

1. Given the following data, what is the lower bound of the confidence interval? Express your answer into 2 decimal places.

Mean = 85

Standard deviation = 20

Sample size = 100

Confidence level = 95%

2. Given the following data, what is the margin of error? Express your answer into 2 decimal places.

Mean = 85

Standard deviation = 20

Sample size = 100

Confidence level = 95%

3. Given the following data, what is the upper bound of the confidence interval? Express your answer into 2 decimal places.

Mean = 85

Standard deviation = 20

Sample size = 100

Confidence level = 95%

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