A confidence interval for a population mean has a margin of error of 2.2. a. Determine the length of the confidence interval. b. If the sample mean is 53.5​, obtain the confidence interval. c. Construct a graph that illustrates your results.     a. The length of the confidence interval is ___________ ​(Type an integer or a decimal. Do not​ round.)   b. The confidence interval for μ is from __________ to __________ ​(Type integers or decimals. Do not​ round.)   c. Select the correct graph

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A confidence interval for a population mean has a margin of error of 2.2.
a. Determine the length of the confidence interval.
b. If the sample mean is 53.5​, obtain the confidence interval.
c. Construct a graph that illustrates your results.
 
 
a. The length of the confidence interval is ___________
​(Type an integer or a decimal. Do not​ round.)
 
b. The confidence interval for μ is from __________ to __________
​(Type integers or decimals. Do not​ round.)
 
c. Select the correct graph
The image presents four diagrams labeled A, B, C, and D, each depicting a number line with a confidence interval (CI). Here's a detailed description of each diagram:

**Diagram A:**
- The number line ranges from 50 to 57.
- The confidence interval (CI) is represented by a horizontal line above the number line, centered at a point marked as "x."
- The CI spans from slightly above 49 to slightly below 56.
- The ends of the CI are marked with two-way arrows pointing inwards towards "E."

**Diagram B:**
- The number line ranges from 49 to 56.
- The confidence interval is labeled explicitly as "Confidence Interval" above the line, centered at "x."
- The CI spans from slightly above 49 to slightly below 56, similar to A.
- The ends of the CI have two-way arrows indicating the margin of error "E."

**Diagram C:**
- The number line ranges from 49 to 56.
- The CI is marked by arrows pointing towards a central point "x."
- The CI spans from slightly above 50 to slightly below 57.
- The margin of error "E" is indicated at both ends with two-way arrows.

**Diagram D:**
- The number line ranges from 50 to 57.
- The CI is labeled "Confidence Interval" above the line, with a central point "x."
- The CI spans from slightly above 50 to slightly below 57, similar to C.
- Two-way arrows at the ends denote the margin of error "E."

Each diagram visually represents a different configuration of confidence intervals and their respective margins of error.
Transcribed Image Text:The image presents four diagrams labeled A, B, C, and D, each depicting a number line with a confidence interval (CI). Here's a detailed description of each diagram: **Diagram A:** - The number line ranges from 50 to 57. - The confidence interval (CI) is represented by a horizontal line above the number line, centered at a point marked as "x." - The CI spans from slightly above 49 to slightly below 56. - The ends of the CI are marked with two-way arrows pointing inwards towards "E." **Diagram B:** - The number line ranges from 49 to 56. - The confidence interval is labeled explicitly as "Confidence Interval" above the line, centered at "x." - The CI spans from slightly above 49 to slightly below 56, similar to A. - The ends of the CI have two-way arrows indicating the margin of error "E." **Diagram C:** - The number line ranges from 49 to 56. - The CI is marked by arrows pointing towards a central point "x." - The CI spans from slightly above 50 to slightly below 57. - The margin of error "E" is indicated at both ends with two-way arrows. **Diagram D:** - The number line ranges from 50 to 57. - The CI is labeled "Confidence Interval" above the line, with a central point "x." - The CI spans from slightly above 50 to slightly below 57, similar to C. - Two-way arrows at the ends denote the margin of error "E." Each diagram visually represents a different configuration of confidence intervals and their respective margins of error.
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