Determine whether each function is an example of exponential growth or decay. Then find the y-intercept.
Explain how to complete the square for an expression of the form
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The article “Modeling of Urban Area Stop-andGo Traffic Noise” presents measurements of traffic noise, in dBA, from 10 locations in Bangkok, Thailand. Measurements, presented in the following table, were made at each location, in both the acceleration and deceleration lanes.
\(\begin{array}{|c|c|}\hline \text{Location} & \text{Acceleration} & \text{Decelaration} \\ \hline 1 & 78.1 & 78.6 \\ \hline 2 & 78.1 & 80.0 \\ \hline 3 & 79.6 & 79.3 \\ \hline 4 & 81.0 & 79.1 \\ \hline 5 & 78.7 & 78.2 \\ \hline 6 & 78.1 & 78.0 \\ \hline 7 & 78.6 & 78.6 \\ \hline 8 & 78.5 & 78.8 \\ \hline 9 & 78.4 & 78.0 \\ \hline 10 & 79.6 & 78.4 \\ \hline \end{array}\)
Can you conclude that there is a difference in the mean noise levels between acceleration and deceleration lanes?
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