An Inventor Has Developed a New Spray Coating That Is

question 1

Multiple Choice

An inventor has developed a new spray coating that is designed to improve the wear of bicycle tires. To test the new coating, the inventor randomly selects one of the two tires on each of 50
Bicycles to be coated with the new spray. The bicycle is then driven for 100 miles and the amount
Of the depth of the tread left on the two bicycle tires is measured (in millimeters) . It is desired to
Determine whether the new spray coating improves the wear of the bicycle tires. The data and
Summary information is shown below: $\begin{array}{c|c|c}\text { Bicycle } & \text { Coated Tire (C) } & \text { Non-Coated Tire (N) } \\\hline 1 & 1.452 & 0.785 \\2 & 1.634 & 0.844 \\1 & 1 & 1 \\50 & 1.211 & 0.954\end{array}$




Use the summary data to construct a $90 \%$ confidence interval for the difference between the means.

• A) \(0.53 \pm 0.03787\)
• B) \(0.53 \pm 0.04512\)
• C) \(0.53 \pm 0.01396\)
• D) \(0.53 \pm 0.01663\)

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Definitions:

Autonomous Morality

The stage in moral development where individuals recognize that rules and laws are created for the good of the collective and can be questioned and modified.

Social Structure

The organized pattern of social relationships and social institutions that together compose society.

Relational Scheme

Cognitive structures that allow individuals to understand and organize their relationships with others.

Peer Rejection

The process or experience of being excluded, ignored, or dismissed by peers or peer groups, which can have various negative psychological and emotional effects on an individual.