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1 If students' performance in ECO 355 is really a function of their preparedness level, and concluded erroneously that, it was due to the nature of the course. What is the form of error?
Type 1 error
2 In hypothesis testing, the 'Ho' indicates that ___
no signif icance difference
3 If as a researcher, you set your study's confidence level at 90%, what is your level of siginificance?
0.1
4 An alternative method in the lest for siginificance of OLS other than the siginificance level is
probab ility value (p-value)
5 In the testing of the significance of OLS parameters, if the t-statistics value is less than the t-critical value, what is will be your decision about the 'Ho'?
accept the null hypothesis
6 In a sample regression output, if the coefficient of determination is 0.76134, what is the implication of this in an econometric model?
it shows that 76% of the out come variable is accounted for by the regressors
7 The coefficient of determination that ranges between 0 and 1 indicates ___
how the sample equation matches the data colle cted
8 In OLS estimation, when the explained sum of square equals to zero, it means that ___
the independent variable is un able to explain the variation in the outcome variable
9 if the variance of the independent variables is zero, it means that ___
the variace of the independent variables is not zero
10 All except one is not among the assumptions of the classical linear regression model (CLRM)
the disturbance term varies
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2017_2 TMA Solutions: ECO355 - Introduction To Econometrics
Re: 2017_2 TMA Solutions: ECO355 - Introduction To Econometrics
Solutions2tma@gmail.com
Whatsapp: 08155572788
1 If Qd = 550 - 0.8(p), interpret the slope coefficient in relation to Qd
if 'p' rises by 1%, Qd drops by about 0.8 % .
2 One basic tool use by econometrician is
linear re gression
3 If Qs = 550 + 0.8(p) in 2015. What was Qs in 2015 when the price level was ?200?
710 units
4 Forecasting in econometrics is important because it ___
reveals futur e value of the dependent variable
5 Hypothesis testing in econometrics means
statistcal infe rence
6 If the R-square ranges between 0 and 1, the negativity of an adjusted R-square shows that ___
the regression equation does not fit the data gathered
7 The degree of freedom is n-k. What does 'k' signifies in this expression?
number of estimated parameters
8 F-stat is essential in the test for OLS estimator parameters when ___
an equation is multiva riate
9 If Y = α + β1X1 + β2X2 + μt, ascertain the degree of freedom (df)
n-3
10 If students' scores in ECO 355 is dependent on their level of preparation, and thinks preparation doesn't matter, which error is this?
type 2 error
Solutions2tma@gmail.com
Whatsapp: 08155572788
Whatsapp: 08155572788
1 If Qd = 550 - 0.8(p), interpret the slope coefficient in relation to Qd
if 'p' rises by 1%, Qd drops by about 0.8 % .
2 One basic tool use by econometrician is
linear re gression
3 If Qs = 550 + 0.8(p) in 2015. What was Qs in 2015 when the price level was ?200?
710 units
4 Forecasting in econometrics is important because it ___
reveals futur e value of the dependent variable
5 Hypothesis testing in econometrics means
statistcal infe rence
6 If the R-square ranges between 0 and 1, the negativity of an adjusted R-square shows that ___
the regression equation does not fit the data gathered
7 The degree of freedom is n-k. What does 'k' signifies in this expression?
number of estimated parameters
8 F-stat is essential in the test for OLS estimator parameters when ___
an equation is multiva riate
9 If Y = α + β1X1 + β2X2 + μt, ascertain the degree of freedom (df)
n-3
10 If students' scores in ECO 355 is dependent on their level of preparation, and thinks preparation doesn't matter, which error is this?
type 2 error
Solutions2tma@gmail.com
Whatsapp: 08155572788
Re: 2017_2 TMA Solutions: ECO355 - Introduction To Econometrics
1 One of the properties of OLS in regression is ___
errors are minimized
2 The residual sum of square (RSS) is the ___
error term squared
3 A sample regression parameter ___ the value of the parameter of the ___
predicts, population
4 In a linear regression, E (X) is also known as ___
mean value of X
5 Regression in econometrics is about ___
knowing the link between v ariables
6 If the R-square ranges between 0 and 1, the negativity of an adjusted R-square shows that ___
the regression equation does not fit the data gathered
7 The degree of freedom is n-k. What does 'k' signifies in this expression?
number of estimated parameters
8 F-stat is essential in the test for OLS estimator parameters when ___
an equation is multiva riate
9 If Y = α + β1X1 + β2X2 + μt, ascertain the degree of freedom (df)
n-3
10 If students' scores in ECO 355 is dependent on their level of preparation, and thinks preparation doesn't matter, which error is this?
type 2 error
errors are minimized
2 The residual sum of square (RSS) is the ___
error term squared
3 A sample regression parameter ___ the value of the parameter of the ___
predicts, population
4 In a linear regression, E (X) is also known as ___
mean value of X
5 Regression in econometrics is about ___
knowing the link between v ariables
6 If the R-square ranges between 0 and 1, the negativity of an adjusted R-square shows that ___
the regression equation does not fit the data gathered
7 The degree of freedom is n-k. What does 'k' signifies in this expression?
number of estimated parameters
8 F-stat is essential in the test for OLS estimator parameters when ___
an equation is multiva riate
9 If Y = α + β1X1 + β2X2 + μt, ascertain the degree of freedom (df)
n-3
10 If students' scores in ECO 355 is dependent on their level of preparation, and thinks preparation doesn't matter, which error is this?
type 2 error
Re: 2017_2 TMA Solutions: ECO355 - Introduction To Econometrics
Solutions2tma@gmail.com
Whatsapp: 08155572788
1 For an estimator to be consistent, it means it ___
conveges to true value
2 In econometrics, basic feature of a good estimator is ___
unbiasines s
3 Qd in question '5' is ___
p inelastic
4 If Qd = 550 - 0.8(p), interpret the slope coefficient in relation to Qd
if 'p' rises by 1%, Qd drops by about 0.8 % .
5 If the R-square ranges between 0 and 1, the negativity of an adjusted R-square shows that ___
the regression equation does not fit the data gathered
6 The degree of freedom is n-k. What does 'k' signifies in this expression?
number of estimated parameters
7 F-stat is essential in the test for OLS estimator parameters when ___
an equation is multiva riate
8 If Y = α + β1X1 + β2X2 + μt, ascertain the degree of freedom (df)
n-3
9 If students' scores in ECO 355 is dependent on their level of preparation, and thinks preparation doesn't matter, which error is this?
type 2 error
10 If students' performance in ECO 355 is really a function of their preparedness level, and concluded erroneously that, it was due to the nature of the course. What is the form of error?
Type 1 error
Solutions2tma@gmail.com
Whatsapp: 08155572788
Whatsapp: 08155572788
1 For an estimator to be consistent, it means it ___
conveges to true value
2 In econometrics, basic feature of a good estimator is ___
unbiasines s
3 Qd in question '5' is ___
p inelastic
4 If Qd = 550 - 0.8(p), interpret the slope coefficient in relation to Qd
if 'p' rises by 1%, Qd drops by about 0.8 % .
5 If the R-square ranges between 0 and 1, the negativity of an adjusted R-square shows that ___
the regression equation does not fit the data gathered
6 The degree of freedom is n-k. What does 'k' signifies in this expression?
number of estimated parameters
7 F-stat is essential in the test for OLS estimator parameters when ___
an equation is multiva riate
8 If Y = α + β1X1 + β2X2 + μt, ascertain the degree of freedom (df)
n-3
9 If students' scores in ECO 355 is dependent on their level of preparation, and thinks preparation doesn't matter, which error is this?
type 2 error
10 If students' performance in ECO 355 is really a function of their preparedness level, and concluded erroneously that, it was due to the nature of the course. What is the form of error?
Type 1 error
Solutions2tma@gmail.com
Whatsapp: 08155572788
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