2020 NOUN TMA Questions & Answers: ECO452 - Applied Statistics

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Jed
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2020 NOUN TMA Questions & Answers: ECO452 - Applied Statistics

Postby Jed » Mon May 04, 2020 7:00 am

2020 NOUN TMA Questions & Answers: ECO452 - Applied Statistics



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In ANOVA, state the degree of freedom within group
Answer: (r-1 )k

R-square in multiple correlation is calledâ€|. Answer: coefficient of determination

Component of time series in all but
Answer: panel regression

Partial correlation coefficient between Y and X1, holding X2 constant can be presented as
Answer: ryx1 x2

In statistics, stating level of confidence as 95% confidence level means â€|â€|..
Answer: it is about stating a probability that the estimate is right at 95%

measures how a variable dispersed
around the population mean
Answer: standard deviation of population

What does partial correlation measures?
Answer: measures the correlation between a dependent variable and one independent variable holding other variables constant

If the variance of a population is denoted as Var P and n = 100, P = 0.4, what is the standard error?
Answer: 0.04

Standard error is â€|.
Answer: defined as the square root of population variance

x1 and x2 are the means of two samples drawn from population. Specify the sampling distribution of the differenc of two means.
Answer: (x1 - x2) = up1 - up2




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Jed
Posts: 1405
Joined: Tue Oct 10, 2017 6:37 pm
Contact:

Re: 2020 NOUN TMA Questions & Answers: ECO452 - Applied Statistics

Postby Jed » Mon May 04, 2020 7:01 am

Email: Solutions2tma@gmail.com
Whatsapp: 08155572788



In a sampling distribution of two means, if P1 = (20,40) and P2 = (30,60), what is Up1 +
p2?
Answer: 77.5

State the null hypothesis as used in ANOVA
Answer: hO: u1= u2 = u3 =â€|.=un

Is the assumption \
Answer: yes

the formular for calculating intercept
multiple regression
Answer: y = a - bx1 - bx2

In testing overall significance of a multiple regression model, if n=8, k=3, find the degree of freedom and the value of Ftab at 5% level of significance
Answer: df= 2,5 and ftab = 5.79

The total variation in two-way ANOVA is divided intoâ€|â€|â€!
Answer: variation between treatment, variation between block and residual variation

is a continous variable that correlate
with the dependent variable
Answer: covariate

In a two way ANOVA, set of observation is classified as
Answer: 2 factor




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