A) -1.03 B) -.43 C) -.48
I had 43 but I was seriously in doubt.
-.43 was the answer… but it was C on the test…
well it said only the “upper” range… blanked on how to do it but since the correlation was a negative correlation I figured the “upper” range on confidence was increasingly negative and went with A
another quant Q. the girl said shes gona change from the CHANGE in inflation to the LEVEL of inflation. the question asked whatll happen if she does that. since it said theres a constant change each year i figured that changing from CHANGE (which is constant) to level (which is changing each yr) would make it nonstationary. so i chose that doing this would make th model invalid. very unformatable tho.
i chose same as you show… let’s hope we’re right
it sounds logical, i broke down every word in that pargraph
Did you use the T-stat table that they gave you in Exhibit 4?
no
I didn’t but then I went back and did. That was one of the option choices so I figured they wanted you to use those stats. They were all one tail t stats and they were asking about only the upper range. I don’t know mannn
std error * t-stat = change in range… coefficient was like -.76 or something if it was a 2 tailed problem then answer was -.43 (use 1.99 as t-stat) if it was 1 tailed (god i hope not) then answer was -.48 (use 1.66 as t-stat) Never know how to tell 1 tail or 2 really, just went with what they usually ask, 2 tail
w/e i got rocke dby quant. i thought it was the hardest item set.
Life sucks right now. But whatever if we all did bad on it then it really doesn’t matter. It’s a curved test
CFAdreams Wrote: ------------------------------------------------------- > std error * t-stat = change in range… coefficient > was like -.76 or something > > if it was a 2 tailed problem then answer was -.43 > (use 1.99 as t-stat) > if it was 1 tailed (god i hope not) then answer > was -.48 (use 1.66 as t-stat) > > Never know how to tell 1 tail or 2 really, just > went with what they usually ask, 2 tail I think this is why it is A. The question said only the “upper” range… and the correlation was a negative correlation. The “upper” range should be increasingly negative
highest number goes in the upper bound… -.43>-1.03
it said the upper range of inflation… which would be increasingly negative unemployment (more employed)
wait a minute - didn’t they say the upper range of the confidence interval? The upper range of the confidence interval should be the result when you add 1.96xSE, regardless of whether it is higher numerically, right??
the answer was .48. Its a two tailed test, and the table gave one tail probabilities so for 5% two tail test you have to use the 2.5% single tail critical t value, which was 1.99 which yielded -.48 for the upper bound.
adavydov7 Wrote: ------------------------------------------------------- > the answer was .48. Its a two tailed test, and the > table gave one tail probabilities so for 5% two > tail test you have to use the 2.5% single tail > critical t value, which was 1.99 which yielded > -.48 for the upper bound. Thank you! I am pretty sure I saw 1 tail probabilities as the headline for that chart. I got -.48 as well.