In 1980, the Population of Blue Whales in the Southern

question 26

Multiple Choice

In 1980, the population of blue whales in the southern hemisphere was thought to number 5,000. The population N(t) has been decreasing according to the formula where t is in years and t = 0 corresponds to 1980. Predict the population in the year 2020 if this trend continues.

Distinguish between various forecasting models and their applications based on the characteristics of the time series.

Calculate forecasts using autoregressive models and interpret the results.

Analyze the adequacy of forecasting models using MAD and other statistical measures.

Understand the impact of smoothing constants in forecasting accuracy.

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Definitions:

Chorion

The outermost membrane surrounding an embryo in mammals, birds, and reptiles, contributing to the formation of the placenta in placental mammals.

Amnion

A thin membrane forming a closed sac around the embryo in birds, reptiles, and mammals.

Yolk Sac

An extra-embryonic membrane that provides food in the form of stored yolk to the developing embryo in eggs and early vertebrates.

Epididymis

A long, coiled tube located at the back of the testis that stores and carries sperm.