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December 8, 2020 at 7:08 pm
In question 3, there is no mention of Coefficient determination but why the explanation includes determination? Please can someone advise?
August 21, 2020 at 1:05 pm
how did you get 11 as n (from question #1)?
March 21, 2020 at 9:32 am
Can I just say that this topic was explain really well. Thank you
John Moffat says
March 22, 2020 at 8:51 am
Thank you for your comment 🙂
February 14, 2020 at 10:25 am
Good day madam/sir Can you please explain me question #3?
February 14, 2020 at 2:32 pm
The coefficient of variation is the square of the correlation coefficient, and it measures what % of variations in one variable can be explained by variations in the other variable.
I do explain this in my free lectures – did you watch the lectures before attempting the test?
October 9, 2019 at 12:57 pm
October 2, 2019 at 12:55 pm
Question #5 for the high low method, the highest level is 75000 not 74000. If 74000 is being used, can you kindly explain why.
October 2, 2019 at 2:24 pm
We use the highest and lowest of the independent variable which here is the production units. I do explain this in my free lecture.
October 2, 2019 at 12:45 pm
Good Day Sir,
can you kindly elaborate a little more on question #2.
October 2, 2019 at 2:26 pm
But what do you want me to elaborate? As the answer says, the coefficient must lie between +1 and -1 (which 1.4 does not).
Again, I explain this in my free lectures – did you not watch the lectures before attempting the test?
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