A Quality Control Supervisor Wishes to Determine Whether the Following

question 84

Multiple Choice

A quality control supervisor wishes to determine whether the following measurements are random: $$\begin{array} { r r r r r r r r } 68.2 & 65 & 66.5 & 65 & 67.5 & 68 & 66 & 64.5 \\65.3 & 64.2 & 67.6 & 66.5 & 66.8 & 68.9 & 67 & 65 \\\\& 65 & 67 & 68 & 71 & 68.5 & 63.6 & 64.7 \\& 71.5 & 70.7 & 66 & 68.5 & 70.5 & 69.5 & 70.1\end{array}$$ For this purpose, the supervisor computes the median of previous observations, and finds it is 67.9.Then she compares each measurement to that median and assigns an "L" to it if it is below the median and a "U" if it is above the median.She determines that the number of Ls and Us are ______ and ______, respectively.

• A)14; 16
• B)17; 13
• C)16; 14
• D)18; 12
• E)12; 18

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Definitions:

Uplift

The process of the Earth's surface rising due to natural geological processes, such as tectonic plate movements.

Crystallize

The process of formation of a solid crystal from a solution, melt, or more rarely from a gas.

Metamorphism

The process by which the composition or structure of rocks is changed by heat and pressure over geological time.

Magma

Magma is molten rock beneath the Earth's surface, which can form igneous rocks upon cooling.