The linear trend equation for the following data is 
= 1.4286 + 2.5(t) .
Find the residual value (error) for period 7.
Definitions:
Rock Type
Classification of rocks based on their physical and chemical composition, such as igneous, sedimentary, or metamorphic.
Rock Age
The age of a rock determined by various dating methods, indicating when it was formed or altered.
Rock Formation
The process by which geological forces lead to the creation of rock structures, through mechanisms like cooling of magma, sedimentation, and metamorphism.
Lithosphere
Earth’s upper, rigid layer composed of the crust and uppermost mantle.
Q8: When we carry out a chi-square test
Q31: An automobile insurance company is in the
Q35: Consider the quarterly production data (in thousands
Q36: Which of the following increases genetic variation?<br>A)
Q39: A very insignificant independent variable (an independent
Q44: In utility analysis, a utility curve that
Q46: The _ component of a time series
Q55: Although it would be advantageous for animals
Q71: Consider a time series with 15 quarterly
Q78: For a given multiple regression model with