Find the Standard Deviation for the Given Data A)Restaurant A: 57; 493

question 111

Multiple Choice

Find the standard deviation for the given data. Round your answer to one more decimal place than the original data.
-When investigating times required for drive-through service, the following results (in seconds) were obtained. $$\begin{array} { l | l | l | l | l | l | l | l | l } \text { Restaurant A } & 120 & 67 & 89 & 97 & 124 & 68 & 72 & 96 \\\hline \text { Restaurant B } & 115 & 126 & 49 & 56 & 98 & 76 & 78 & 95\end{array}$$

• A)Restaurant A: 57; 493.98; 22.23
• B)Restaurant A: 57; 493.98; 24.97 Restaurant B: 77; 727.98; 26.98 Restaurant B: 70; 722.53; 26.98
• C)Restaurant A: 75; 493.98; 22.23
• D)Restaurant A: 57; 493.98; 22.23 Restaurant B: 70; 727.98; 26.98 Restaurant B: 56; 727.98; 32.89

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Definitions:

Single-Phase Loads

Equipment that operates on a single alternating current (AC) power phase, usually seen in residential and light commercial settings.

High Leg

In electrical systems, a conductor within a delta configuration that carries higher voltage to ground than the other conductors.

Center Tapped Transformer

A transformer with a connection point (tap) in the middle of the secondary winding, which allows for splitting the output voltage into two parts, each half of the full voltage.

Voltage

An electrical measurement that represents the difference in electric potential energy between two points in a circuit.