S
Stefania Anastasopoulou
Member
Hi everyone. Could you please answer to me ASAP?
I have questions on chapter 12.
1. In the grouping of signs test, could you tell me how i can determine the number of groups of positive deviations? (example
2.Almost all exercises in the chi-squared test have to do with graduation by reference to a standard table. If we are not given an equation and we are only told that there was a reference with a standard table, how many degrees of freedom should we deduct? or should we not deduct at all? I am confused as in some past papers we deduct for example 2 or 3 and in some others 0.
3. In April 2017 question 10, i cannot understand how we conducted a chi squared test as we are only given the ranges and not the exact values of Zx. Could i take another test rather than chi squared?
4. In September 2015 Question 11 i cannot understand the rationale behind the answer of IV.
5. Also, in the chi squared test we have (actual - expected)^2/expected. Could you please explain to me why the graduated rates are the expected ones?
Thank you everyone!
I have questions on chapter 12.
1. In the grouping of signs test, could you tell me how i can determine the number of groups of positive deviations? (example
2.Almost all exercises in the chi-squared test have to do with graduation by reference to a standard table. If we are not given an equation and we are only told that there was a reference with a standard table, how many degrees of freedom should we deduct? or should we not deduct at all? I am confused as in some past papers we deduct for example 2 or 3 and in some others 0.
3. In April 2017 question 10, i cannot understand how we conducted a chi squared test as we are only given the ranges and not the exact values of Zx. Could i take another test rather than chi squared?
4. In September 2015 Question 11 i cannot understand the rationale behind the answer of IV.
5. Also, in the chi squared test we have (actual - expected)^2/expected. Could you please explain to me why the graduated rates are the expected ones?
Thank you everyone!