Find the Range, Variance, and Standard Deviation for Each of the Two

question 88

Multiple Choice

Find the range, variance, and standard deviation for each of the two samples, then compare the two sets of results.
-When investigating times required for drive-through service, the following results (in seconds) were obtained. $\begin{array}{lllllllll}\text { Restaurant A } & 120 & 123 & 153 & 128 & 124 & 118 & 154 & 110\end{array}$
$\begin{array}{lllllllll}\text { Restaurant B } & 115 & 126 & 147 & 156 & 118 & 110 & 145 & 137\end{array}$

• A)
• \(\begin{array} { l l l l l l l l l } \text { Restaurant A } & 120 & 123 & 153 & 128 & 124 & 118 & 154 & 110 \end{array}\)
• Restaurant B: \(46 \mathrm { sec } ; 285.64 \mathrm { sec } ^ { 2 } ; 16.90 \mathrm { sec }\)
• There is more variation in the times for restaurant A.
• B) Restaurant A: \(46 \mathrm { sec } ; 260.79 \mathrm { sec } ^ { 2 } ; 16.15 \mathrm { sec }\)
• Restaurant B: \(44 \mathrm { sec } ; ^ { 285 } .64 \mathrm { sec } ^ { 2 } ; 16.90 \mathrm { sec }\)
• There is more variation in the times for restaurant \(B\).
• C) Restaurant A: \(44 \mathrm { sec } _ { ; } 260.79 \mathrm { sec } ^ { 2 } ; 16.15 \mathrm { sec }\)
• Restaurant B: \(46 \mathrm { sec } ^ { ; } ; 285.64 \mathrm { sec } ^ { 2 } ; 16.90 \mathrm { sec }\)
• There is more variation in the times for restaurant B.
• D) Restaurant A: \(44 \mathrm { sec } ^ { * } 260.79 \mathrm { sec } ^ { 2 } ; 16.15 \mathrm { sec }\)
• Restaurant B: \(46 \mathrm { sec } ^ { ; } ; 245.64 \mathrm { sec } ^ { 2 } ; 15.67 \mathrm { sec }\)
• There is more variation in the times for restaurant A.

---

Definitions:

Production

The process of creating, manufacturing, or enhancing goods and services.

Distribution

In business, distribution refers to the process of getting a product or service from the manufacturer or service provider to the end consumer.

Junk Bond

A high-yield bond with a lower credit rating, reflecting a higher risk of default but offering potentially greater returns.

High-Risk Bond

A bond with a lower credit rating, indicating a higher risk of default, but offering higher potential returns to compensate for this risk.