ECO452
In ANOVA, state the degree of freedom within group
Answer: (r-1 )k
R-square in multiple correlation is called|. Answer: coefficient of determination
Component of time series in all but
Answer: panel regression
Poisson distribution is used to
Answer: determine the probability of designated number of success
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 ..
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
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 .=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 into
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
Follow me on Twitter @louisoladimeji for your Free Exam Summary and free past questions
Whatsapp Chat: 08039407882 for your Project Writeup I Business Plan Writeup I Online Tutorial
