An Analyst Examines the Effect That Various Variables Have on Crop

question 66

Essay

An analyst examines the effect that various variables have on crop yield. He estimates y = β₀ + β₁x₁ + β₂x₂ + β₃x₃ + ε. where y is the average yield in bushels per acre, x₁ is the amount of summer rainfall, x₂ is the average daily use in machine hours of tractors on the farm, and x₃ is the amount of fertilizer used per acre. The results of the regression are as follows: a. At the 10% significance level, are the explanatory variables jointly significant in explaining crop yield? Explain.
B) At the 10% significance level, is fertilizer significant in explaining crop yield? Explain.
C) At the 10% significance level, can you conclude that the slope coefficient attached to rainfall differs from 9? Explain.

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Definitions:

Timberlands

Refers to land primarily used for the cultivation and harvesting of timber.

Depletion

An accounting approach used to allocate the cost of extracting natural resources, such as minerals, oil, and gas, over the period those resources are extracted and sold.

Coal Company

A business entity engaged in the extraction, processing, and selling of coal as an energy source or raw material.

Salvage Value

The anticipated remaining value of an asset once it has completed its functional lifespan, typically taken into account in computations of depreciation.