CI Review Worksheet II
... c) Since the confidence interval has more positive values, we can say that there is a significant mean difference between the grades in the fall and spring semester. d) Since the confidence interval has some negative values, we can say that there is a significant mean difference between the grades i ...
... c) Since the confidence interval has more positive values, we can say that there is a significant mean difference between the grades in the fall and spring semester. d) Since the confidence interval has some negative values, we can say that there is a significant mean difference between the grades i ...
09test of hypothesis small sample
... Critical value: either tα,n-1 or tα/2 ,n-1 T.S. : t = x¯-µ0/s/√n RR:1) Reject H0 if t > tα,n-1 2) Reject H0 if t < -tα,n-1 3) Reject H0 if t > tα/2 ,n-1 or t < -tα/2,n-1 Decision: 1) if observed value is in RR: “Reject H0” 2) if observed value is not in RR: “Do not reject H0” Conclusion: At 100α% si ...
... Critical value: either tα,n-1 or tα/2 ,n-1 T.S. : t = x¯-µ0/s/√n RR:1) Reject H0 if t > tα,n-1 2) Reject H0 if t < -tα,n-1 3) Reject H0 if t > tα/2 ,n-1 or t < -tα/2,n-1 Decision: 1) if observed value is in RR: “Reject H0” 2) if observed value is not in RR: “Do not reject H0” Conclusion: At 100α% si ...
Semester MATHEMATICAL ECONOMICS IV UNIVERSITY OF CALICUT
... A. Empirical support to economic theory B. Quantitative analysis of economic data C. Use of tools of mathematics and statistical inference D. All of the above 8. Which of the following is the combination of economic theory, mathematical economics and ...
... A. Empirical support to economic theory B. Quantitative analysis of economic data C. Use of tools of mathematics and statistical inference D. All of the above 8. Which of the following is the combination of economic theory, mathematical economics and ...
Chapter 5
... Efficiency of OLS, part II: Under all five extended LS assumptions – including normally distributed errors – ˆ1 has the smallest variance of all consistent estimators (linear or nonlinear functions of Y1,…,Yn), as n . This is a pretty amazing result – it says that, if (in addition to LSA 1-3 ...
... Efficiency of OLS, part II: Under all five extended LS assumptions – including normally distributed errors – ˆ1 has the smallest variance of all consistent estimators (linear or nonlinear functions of Y1,…,Yn), as n . This is a pretty amazing result – it says that, if (in addition to LSA 1-3 ...
Measures of Variability
... cancel out the negative numbers – remember that a negative value times a negative value equals a positive value – squaring the deviation scores gives us a total number we can work with – the variance ...
... cancel out the negative numbers – remember that a negative value times a negative value equals a positive value – squaring the deviation scores gives us a total number we can work with – the variance ...
