Four Types of Bicycle Tires Are Ridden in Six Different $\chi$

question 16

Multiple Choice

Four types of bicycle tires are ridden in six different cities to see if the tires lasted about the same number of miles.If there are differences, then that tire could promote its durability to potential customers.Using the data in the table below and an alpha of 0.05, what is the observed value of $\chi$ ²? $$\begin{array} { l c c c c } & \text { Tire A } & \text { Tire B } & \text { Tire C } & \text { Tire D } \\\text { City 1 } & 105 & 157 & 112 & 119 \\\text { City 2 } & 142 & 124 & 132 & 144 \\\text { City 3 } & 133 & 121 & 138 & 130 \\\text { City 4 } & 98 & 136 & 110 & 119 \\\text { City 5 } & 114 & 141 & 95 & 128 \\\text { City 6 } & 117 & 138 & 129 & 140\end{array}$$

• A)77.82
• B)5.00
• C)84.67
• D)9.35
• E)4.00

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The amount added to the cost price of goods to cover overhead and profit, expressed as a percentage of the cost price.

Selling Price

The amount for which a product or service is sold to customers.

Organic Nutrients

Essential minerals and compounds derived from living organisms used to promote plant or soil health.

Batch

A set of goods or materials processed or produced at the same time, often used in the context of batch processing.