Which of the following quantitative method is not used by managers to take decision :-
(a) Linear programming
b) Time series
c) Regression analysis
d) Hypothesis testing

d) Hypothesis testing (quantitative method is not used by managers to take decision).
In quantitative decision-making problems, different kinds of formal mathematical and other types of models have been implemented. [ All organizations in business use many quantitative methodologies, including network analysis, forecasting (regression, path analysis, and time series), cost-benefit analysis,

optimization (linear programming, assignment, and transportation), sensitivity analysis, significance testing, simulation, benchmarking, and total quality management.
]

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Asked 11/1/2012 6:33:47 AM

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If every item in the data set is increased by the same quantity then the standard deviation of the data set-
(a) Remains the same
(b) Increases by the same quantity by which every data item is increased
(c) Decreases by the same quantity by which every data item is increased
(d) Increases by the square root of the same quantity by which every data item is increased

Weegy: (c) Decreases by the same quantity by which every data item is increased (More)

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Expert Answered

Asked 11/1/2012 6:26:43 AM

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Which of the following is true with regard to a linear equation Y – a – bX = 0, where X is the independent variable and Y is the dependent variable :-
(a) The slope of the straight line is ‘a’
(b) The Y-intercept of the straight line is 0
(c) The Y-intercept of the straight line is ‘b’
(d) The slope and the Y-intercept remain constant for all combinations of X and Y values which
satisfy the equation

Weegy: y=-x+8
To find the x-intercept, substitute in 0 for y and solve for x.
(0)=-x+8
Since x is on the right-hand side of the equation, [ switch the sides so it is on the left-hand side of the equation.
-x+8=(0)
Remove the parentheses around the expression 0.
-x+8=0
Since 8 does not contain the variable to solve for, move it to the right-hand side of the equation by subtracting 8 from both sides.
-x=-8
Multiply each term in the equation by -1.
-x*-1=-8*-1
Multiply -x by -1 to get x.
x=-8*-1
Multiply -8 by -1 to get 8.
x=8
To find the y-intercept, substitute in 0 for x and solve for y.
y=-(0)+8
Multiply -1 by the 0 inside the parentheses.
y=0+8
Adding 0 to an expression does not change the value of the expression.
y=8
These are the x and y intercepts of the equation y=-x+8.
x=8, y=8 ] User: Which of the following is true with regard to a linear equation Y – a – bX = 0, where X is the independent variable and Y is the dependent variable :-
(a) The slope of the straight line is ‘a’
(b) The Y-intercept of the straight line is 0
(c) The Y-intercept of the straight line is ‘b’
(d) The slope and the Y-intercept remain constant for all combinations of X and Y values which
satisfy the equation
Weegy: y=-x+8
To find the x-intercept, substitute in 0 for y and solve for x.
(0)=-x+8
Since x is on the right-hand side of the equation, [ switch the sides so it is on the left-hand side of the equation.
-x+8=(0)
Remove the parentheses around the expression 0.
-x+8=0
Since 8 does not contain the variable to solve for, move it to the right-hand side of the equation by subtracting 8 from both sides.
-x=-8
Multiply each term in the equation by -1.
-x*-1=-8*-1
Multiply -x by -1 to get x.
x=-8*-1
Multiply -8 by -1 to get 8.
x=8
To find the y-intercept, substitute in 0 for x and solve for y.
y=-(0)+8
Multiply -1 by the 0 inside the parentheses.
y=0+8
Adding 0 to an expression does not change the value of the expression.
y=8
These are the x and y intercepts of ... (More)

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Expert Answered

Asked 11/1/2012 6:27:43 AM

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