The Following Information Was Obtained from Matched Samples Taken from Two

question 17

Multiple Choice

The following information was obtained from matched samples taken from two populations.Assume the population of differences is normally distributed. $\begin{array}{lll}\text { Individual } & \text { Method 1 } & \text { Method 2 } \\1 & 7 & 5 \\2 & 5 & 9 \\3 & 6 & 8 \\4 & 7 & 7 \\5 & 5 & 6\end{array}$
The 95% confidence interval for the difference between the two population means is

• A) -3.776 to 1.776.
• B) -2.776 to 2.776.
• C) -1.776 to 2.776.
• D) -1.776 to 1.776.

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Definitions:

Island Arc

A chain of volcanically active islands arranged in an arc, situated along the boundary of tectonic plates, generally forming over a subducting plate.

Avalonia

An ancient microcontinent or terrane whose history is recorded in the rocks of Eastern North America, the British Isles, and mainland Europe.

Subduction

The geological process by which an oceanic tectonic plate is forced beneath another plate, contributing to geologic phenomena such as mountain building.

Sierra Nevada

A mountain range in the Western United States, known for its striking landscapes, ski resorts, and hiking trails.