EXAM 3 Flashcards
When managers make decisions, they need to 1) ___ the 2) ___ (and __) among the 3) al___ actions.
So managers need to 4) _____ the costs associated with that alternative
1) compare
2) cost (and benefits)
3) alternative
4) estimate
Cost estimates can be an important element in helping managers make 1) ____ that add 2) ___ to the company
What adds value to the firm (2 points)?
-improves 3) ____ and ____ etc.
1) decisions
2) value
3) profitability and better decisions
The most important characteristic of cost for decision making is how they 1) ___ (how they 1.0) ___ with activity)
Therefore, the basic idea in cost estimation is to 2) ____ the relation between 3) ___ and the 4) ____ affecting them, the cost 5) ____
1) behave
1.0) vary
2) estimate
3) costs
4) variables
5) drivers
What are the 2 key terms of cost behavior?
What’s the formula of the cost equation?
___ = ___ +___
variable costs and fixed costs
Formula = TC = F + VX
TC = total costs
F = fixed costs (don’t vary with activity levels)
V = variable costs (per unit of activity)
X = volume of activity
Variable costs 1) ___ proportionately with activity levels and fixed costs 2) ___
1) change
2) do not
What are 3 general methods to estimate the relation between cost behavior and activity levels?
1) E _____ ___
2) Ac____ ___
3) S_____ ____ (like regression analysis)
-Engineering estimates
-Account Analysis
-Statistical methods
For the general methods to estimate the relation between cost behavior and activity levels (Engineering estimates, Account Analysis, Statistical methods
It’s a good idea to use 1) ____ than 2) ___ method so that results can be 3) ___
1) use more
2) one
3) compared
Define Engineering Estimates
cost estimates are based on 1) m__ and then 2) p__the 3)___invovled in a task
activities involved is 4) la____, r___, and i____
1) measuring
2) pricing
3) work
4) labor, rent, insurance
Engineering Estimates also estimates the 1) __ and ___ for each activity
1) time and cost
What are the advantages of the Engineering Method
- it can 1) ____ each 2) ___ required to perform operation
- permits 3) ____ with other centers with 4) si___ operations
- doesn’t require 6) ___ from 7) ___ activities in the organization
-it can be used to estimate costs for totally 8) __ activities
1) detail
2) step
3) comparison
4) similar
6) data
7) prior
8) new
What are the disadvantages of Engineering Estimates ?
- can be 1) ____ to use
- based on 2) ___ conditions
1) expensive
2) optimal
A company that uses engineering estimates often can identify where 1) ___ exists in operation
slack
Define Account Analysis
1) r___ each 2) a_____making up the total 3) ___ being analyzed.
1) reviews
2) account
3) cost
Account analysis 1) __ each 2) ___ account used to record costs that are of 3) __, if it’s 4) __ or ___ (depending on the relationship with the cost activity)
1) reviews
2) cost
3) interest
4) fixed or variable
What’s a key step in account analysis ?
Identifying the relation between the 1) __ and the 2) __
1) activity
2) cost
Account analysis is a useful way to 1) est___ c__
it uses the 2) ___ and 3) __ of managers and accountants who are familiar with company 6) __. and the way cost 7) ___ to 8) __ in activity level
1) estimate costs
2) experience
3) judgment
6) operations
7) react
8) changes
Account analysis relies heavily on 1) ___, which can be a disadvantage/advantage depending on the 2) ___ of the person making the estimate.
The decisions based on the cost estimate can have a major 3) ____ co______ for the people making them
1) personal judgment
2) bias
3) economic consequence
What is an advantage of the Analysis Method?
1) __ and 2) ___ are familiar with company 3) ___ and the way 4) ___ react to 5) __ in activity levels
There’s a card for this before this is just saying it again (but study it!)
1) managers
2) accountants
3) operations
4) costs
5) changes
What are the disadvantages of the Analysis Method?
-managers and accountants may be 1) __
-decisions often have major 2) ___ ____ for managers and accounts
There’s a card for this before this is just saying it again (but study it!)
1) bias
2) economic consequences
Define Statistical Cost Estimation
analyze costs within a 1) ___ ___, which is the 2) __ within a cost estimate may be 3) ___
1) relevant range
2) limits
3) valid
Statistical Cost Estimation
Relevant range for projection is usually between 1) ___ and __ limits (bounds) of 2) __ activity levels for which data is 3) ___
1) upper and lower
2) past
3) available
A graph that you can use for statistical cost estimation is
a scattergraph
Scattergraph
-the slope of the line represents the estimated 1) ____ costs per unit. The intercept with the vertical axis represents an estimate of the 2) ___ costs
1) variable
2) fixed
Scattergraph
-the slope is referred to as the variable per unit because it represents the 1) ___ in costs that occurs as a result of changes in 2) ____
-the intercept is referred to as the fixed costs because it represents the cost incurred at a 3) ____level
1) change
2) activity
3) zero
Define High-low cost estimation
method to estimate cost based on 1) __ cost observations, which are the 2) __ and __ 3) __ levels
1) two
2) highest and lowest
3) activity
SB 5-2
Define Regression
designed to generate a 1) __- that 2) ___t fits a set of data points
uses 3) a___ ____ points
1) line
2) best
3) all data
Regression techniques…
-it uses all data points, the resulting estimates have a 3) ___ base than those based on a few select points (like high and low activity levels)
-generates 4) __ that helps a manager determine how well the estimated 5) re____ equation describes the relations between 6) ___ and __
3) broader
4) info
5) regression
6) costs and activities
Obtaining Regression Estimates
-the most important step in obtaining regression estimates for cost estimation is to establish the 1) e___ of a logical 2) r____ between 2.0) ac___ and the cost to be 2.1) es____
these activities are referred as 3) ___, which are the 4) ___ terms/____ variable or the 5) __ (RHS) of a regression equation
the cost to be estimated is called the 6) ___ ___, the 7) ___ term or the 8) ___ (LHS) of the regression equation
1) existence
2) relation
2.0) activities
2.1) estimated
3) predictors
4) X terms/independent variable
5) right-hand side
6) dependent variable
7) Y term
8) the left-hand side
The independent variable in regression is the 1) ____ term or 2) ____r
-the activity that 3) p___ the 4) c___ in cost
The dependent variable in regression is the 5) ___ term
-cost to be 6) ___
1) X
2) predictor
3) predicts
4) change
5) Y
6) estimated
Define Correlation Coefficient
-1) m__ the 2) p__ of the data points to the 3) __ line
-which is referred as 4) ___
other definition
-the 5) m___ the 6) li____r rel____ between 7) va___s
1) measures
2) proximity
3) regression
4) R
5) measure
6) linear relationship
7) variables
Correlation Coefficient (R)
-the closer R is to 1.0, the 1) __ the data 2) __ are to the regression line (the more we 2.0) ___ it)
-the closer R is to zero, the 3) __ the 4) __ to the regression line (the more we 4.0) ___ like it)
1) closer
2) points
2.0) like
3) poorer
4) fit
4.0) don’t
Correlation Coefficient is also called
R, Multiple R
Define Coefficient of Determination
-interpreted as the proportion of the variation in the 1) ____ variable (__ terms) by the 2) ___ side (__ terms, the ___ variable) of the regression equation
-referred as the 3) ____ (___)
-it’s the 4) _____ of the correlation coefficient
1) dependent variable (Y terms)
2) right hand side (X terms, the independent variable)
3) R-squared (R^2)
4) square
When the correlation coefficient is squared and adjusted for the number of independent variables used to make the estimate, it is called ____
adjusted R^2
The most commonly used regression technique is called 1) ___ ___ of ____ regression (OLS)
-this technique, the regression line is computed so that the 2) ___ of the squares of the 3) __ distances from each point to the regression line is 4) __
-therefore, it’s important to beware of 5) ___data points that vary significantly from the usual
1) ordinary least of squares regression (OLS)
2) sum
3) vertical
4) minimized
5) including
Because the regression program seeks to minimize square differences, the inclusion of these extreme points or “outliers” can significantly affect the results
Define t-statistic
it’s used to 1) __ the 2) __ of the coefficient
-the general rule of thumb, a t-statistic greater than 4) __ is considered 5) __. If it is significant, the cost is 6) ___ totally 7) ___
1) test
2) significance
4) 2.0
5) significant
6) NOT
7) fixed
How is t-statistic calculated?
– the value of the estimated 1) co___ (___), 2) ____by its estimated 3) s___ ___r (SEb)
1) coefficient (b)
2) divided
3) standard error (SEb)
-it’s a little b
Define Adjusted R-squared (R^2)
the correlation coefficient squared and adjusted for the number of 1) ___ used to make the estimate
this adjustment to R^2 recognizes that as the number of independent variables increases, R^2 (unadjusted) will 2) _____
don’t learn it
1) independent variable
2) increase
Adjusted R-squared (R^2)
Statisticians believe that R^2 is a 1) ___ measure of the association between 2) __ and ___ than the 3) un__ ____ value when more than one 4) ___ predictor is used
don’t learn it
1) better
2) X and Y
3) unadjusted R^2
4) X
Define Multiple Regression
when more than 1) o____ p____ (__) is in the model
X1: ___ hours
X2: ___ costs
What’s the equation ?
Total costs = ___(__) + ____(__) + ___ costs
1) one predictor (X)
Total Costs = Variable costs(X1) + Variable Costs(X2) + fixed costs
X1: laborhours
X2: materials costs
What are the more common problems with using regression estimates?
- attempting to 2) ___ a 3) ___ equation to a 4)___ data
- failing to 6) ___ 7) ___ observations (called 8) “___”)
-including 9) __ with apparent, but spurious relations to the 10) __ variable
-using data that 11) ___ fit the 12) as __ of regression analysis
2) fit
3) linear
4) nonlinear
6) exclude
7) unrepresentative
8) outliers
9) predictors
10) dependent
11) don’t
12) assumptions
What are the practical implementation problems
-1) __ relations
-2) o___
-3) ___ relations
-using data that 4) ___ the 5) __ of regression analysis
1) nonlinear
2) outliers
3) spurious
4) don’t fit
5) assumptions
Effect of Nonlinear Relations
the effect of attempting to fit a linear model to nonlinear data is likely to occur when the firm is operating near its 1) ___ li___
Close to maximum capacity cost 2) ___ more rapidly than activity overtime
1) capacity limits
2) increase
Effect of Outliers
because regression minimizes the sum of the squared deviations from the regression line, observations that lie a significant distance away from the line could have an 1) ___on the regression estimates
1) overwhelming effect
Effect of Spurious Relations
-It’s sometimes tempting to include 1) m__ ___ in the regression and let the program 2) “___” r__ among the variables
this can lead to spurious relations
The association will typically be quite 3) ___, but both are driven by 4) __t
1) many variables
2) find relations
3) high
4) output
Effects of Using Data that Don’t Fit the Assumptions of Regression Analysis
2 important assumptions that are NOT satisfied in estimating costs
-the process of which cost are being estimated remains 1) ___ o___
-the errors in estimating costs are 2) in__ of the cost 3) ____
1) constant overtime
2) independent
3) drivers
Effects of Using Data that Don’t Fit the Assumptions of Regression Analysis
regression analysis assumed the process stays the same, so it leaves the cost analyst with 2 choices
Choice 1: the analyst can restrict to a 1) __ period and assumed the process has remained the 2) __
-estimates will 3) __ be as 4) ___ because there are relatively 5) __ observations
Choice 2: the analyst can use 6) ___ period. As long as the process has 7) ___ ___d
-then the estimates will be 8) __ ___ (since it’s based on more 9) ___), but the analyst risks using estimates that might 10) __ be meaningful if the process has 11) ___
1) short
2) same
3) not
4) reliable
5) few
6) longer
7) not changed
8) more reliable
9) information
10 not
11) changes
Users of regression should
- fully understand the 1) __and its 2) __
- 3) __ the model, that’s the hypothesized relation between 4) __ and __ pre___
- know the 5) ___ of the data being 6) __
- examine a 7) __ of the data
And regression estimate is only a ___
1) method
2) limitations
3) specify
4) costs and cost predictors
5) characteristics
6) uses
7) plot
only an estimate
How is an Estimation Method is Chosen
What are the advantages?
-reliance on 1) ____data is relatively 2) i___e
-computational 3) t__ allow for more 4) ___ to be used than for 5) no___-s___ method
1) historical
2) inexpensive
3) tools
4) data
5) non-statistical
How is an Estimation Method is Chosen
What are the disadvantages?
-reliance on historical data may be the 1) o___ re__ available, cost effective basis for estimating costs
-analysis must be 2) al__ to cost 3) ac__ c__
1) only readily
-basically relying only on historical data is not gonna be great
2) alert
3) activity changes
Define learning phenomenon
Systematic relationship between the amount of 1) ___ in performing a 2) __ and the __ required to perform it
1) experience
2) task and the time
The learning phenomenon means that variable costs tend to 1) __ per unit as the volume of activity 2) ___
-so the linear cost estimate will 3) ___ the variable cost per unit
1) decrease
2) increases
3) overstate
The learning phenomenon affects the most 1) ___ activities (2) ____ costs)
1) professional
2) overhead
What are Data problems
-1) __ data
-2) o__
-3) in__
-4) al__ and d___y costs
-5) mi ___ t___ periods
1) missing
2) outliers
3) inflation
4) allocated and discretionary
5) mismatched time