Shrimp from 1982 to 1990, There Was a Decrease in the Number

question 94

Essay

Shrimp From 1982 to 1990, there was a decrease in the number of white shrimp harvested
from the Galveston Bay. Here is the regression analysis and a residual plot. The year has
been shortened to two digits (82, 83…) and the dependent variable is the number of shrimp
collected per hour. Dependent Variable: Shrimp/hour
$\mathrm { R } - \mathrm { sq } = 0.9496342$
s: $6.0232354$

$\begin{array} { l r r } \text { Parameter } & \text { Estimate } & \text { Std. Err. } \\ \text { constant } & 816.71111 & 66.903419 \\ \text { year } & - 8.9333333 & 0.77759635 \end{array}$

a. Write the regression equation and define your variables.
b. Find the correlation coefficient and interpret it in context.
c. Interpret the value of the slope in context.
d. In 1991, the shrimp production rebounded (in part due to the effects of El Nino) to 81
shrimp/hour. Find the value of this residual.
e. The prediction for 1991 was very inaccurate. What name do statisticians give to this kind
of prediction error?

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Definitions:

Learning Organisations

Companies that continuously facilitate the learning of their members and transform themselves accordingly.

Vendors

Companies or individuals that sell goods or services to consumers or other businesses.

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An organizational culture that emphasizes and prioritizes core values in its decision-making, behavior, and strategy, fostering a unified and principled workforce.

Classical Approaches

Traditional methods or theories in fields such as management, focusing on hierarchical structure, efficiency, and the division of labor.