Use the confidence interval to find the margin of error and the sample mean. (0.276,0.440) The margin of error is The sample mean is

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**Using Confidence Intervals to Determine Margin of Error and Sample Mean**

To find the margin of error and the sample mean, we start with the given confidence interval: (0.276, 0.440).

- **Margin of Error:**
  - The margin of error is calculated as half the width of the confidence interval.
  - Margin of Error = (Upper Bound - Lower Bound) / 2
  - Thus, Margin of Error = (0.440 - 0.276) / 2
  - Complete this calculation to find the margin of error.

- **Sample Mean:**
  - The sample mean is the midpoint of the confidence interval.
  - Sample Mean = (Upper Bound + Lower Bound) / 2
  - Thus, Sample Mean = (0.440 + 0.276) / 2
  - Complete this calculation to find the sample mean.

Make sure to perform the calculations to determine the exact values of the margin of error and sample mean.
Transcribed Image Text:**Using Confidence Intervals to Determine Margin of Error and Sample Mean** To find the margin of error and the sample mean, we start with the given confidence interval: (0.276, 0.440). - **Margin of Error:** - The margin of error is calculated as half the width of the confidence interval. - Margin of Error = (Upper Bound - Lower Bound) / 2 - Thus, Margin of Error = (0.440 - 0.276) / 2 - Complete this calculation to find the margin of error. - **Sample Mean:** - The sample mean is the midpoint of the confidence interval. - Sample Mean = (Upper Bound + Lower Bound) / 2 - Thus, Sample Mean = (0.440 + 0.276) / 2 - Complete this calculation to find the sample mean. Make sure to perform the calculations to determine the exact values of the margin of error and sample mean.
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