CFA论坛 - Powered by Discuz! Board

标题: Reading 11: Hypothesis Testing - LOS d ～ Q1-2 [打印本页]

作者: mayanfang1 时间: 2009-1-13 16:04 标题: [2009] Session 3 - Reading 11: Hypothesis Testing - LOS d ～ Q1-2

Q1. Of the following explanations, which is least likely to be a valid explanation for divergence between statistical significance and economic significance?

A) Transactions costs.

B) Adjustment for risk.

C) Data errors.

Q2. Which of the following statements about statistical results is most accurate?

A) If a result is statistically significant and economically meaningful, the relationship will continue into the future.

B) If a result is statistically significant, it must also be economically meaningful.

C) A result may be statistically significant, but may not be economically meaningful.

作者: mayanfang1 时间: 2009-1-13 16:04

答案和详解如下：

Q1. Of the following explanations, which is least likely to be a valid explanation for divergence between statistical significance and economic significance?

A) Transactions costs.

B) Adjustment for risk.

C) Data errors.

Correct answer is C)

While data errors would certainly come to bear on the analysis, in their presence we would not be able to assert either statistical or economic significance. In other words, data errors are not a valid explanation. The others are all mitigating factors that can cause statistically significant results to be less than economically significant.

Q2. Which of the following statements about statistical results is most accurate?

A) If a result is statistically significant and economically meaningful, the relationship will continue into the future.

B) If a result is statistically significant, it must also be economically meaningful.

C) A result may be statistically significant, but may not be economically meaningful.

Correct answer is C)

It is possible for an investigation to determine that something is both statistically and economically significant. However, statistical significance does not ensure economic significance. Even if a result is both statistically significant and economically meaningful, the analyst needs to examine the reasons why the economic relationship exists to discern whether it is likely to be sustained in the future.

作者: zeraeh 时间: 2009-2-17 21:48

看答案，谢谢LZ

作者: jacky_z 时间: 2009-2-24 23:11

Thanks

作者: 风烈 时间: 2009-2-25 17:59

谢谢楼主

作者: hjl2000 时间: 2009-3-28 21:04

d

作者: connie198226 时间: 2009-4-3 01:37

ss

作者: kgbvvsscia 时间: 2009-4-7 09:44

谢谢诶哈哈

作者: hollyhe 时间: 2009-4-10 16:14

d

作者: 大狗狗 时间: 2009-4-18 14:49

k

作者: amyamyamy 时间: 2009-4-21 10:34

thank you

作者: big36999 时间: 2009-4-24 07:21

xx

作者: 长弓 时间: 2009-4-25 19:48

[em60][em60] 

作者: dullmul 时间: 2009-5-3 14:09

thx

作者: giolu 时间: 2009-5-6 21:25

 ok

作者: deqiang 时间: 2009-5-7 23:45

 ok

作者: Michjay 时间: 2009-5-11 01:14

a

作者: gerda2000 时间: 2009-5-15 16:33

thanks

作者: zzjz 时间: 2009-5-19 23:38

thx

作者: helloalan 时间: 2009-5-21 11:34

 cc

作者: danqing66 时间: 2009-5-22 15:26

thanks

作者: valvet 时间: 2009-6-3 11:25

cc

作者: yan_superman 时间: 2009-6-6 09:10

 [em50]

作者: kin009 时间: 2009-6-6 16:54

3

作者: kin009 时间: 2009-6-6 18:46

s

作者: ch_914 时间: 2009-7-21 02:13

thanks

作者: jzwx 时间: 2009-7-26 10:42

thanks

作者: 流浪狗 时间: 2009-8-6 00:35

thanks

作者: josephine_loh 时间: 2009-8-9 15:19

 tq

作者: luodan0103 时间: 2009-9-2 19:15

thanks

作者: huangyichun 时间: 2009-9-7 22:12

  thanks

作者: tobuketsu 时间: 2009-9-8 16:43 标题: re

 th

作者: lamchoonho 时间: 2009-9-9 18:23

  thamks

作者: doralin 时间: 2009-10-26 09:40

[em55]

作者: casey11 时间: 2009-10-27 17:37

11

作者: solitute 时间: 2009-10-31 16:52

thanks

作者: lqx1211 时间: 2009-11-4 14:01

a

作者: haisian 时间: 2009-11-8 21:46

O(∩_∩)O谢谢

作者: xmwang 时间: 2009-11-11 02:55

ding

作者: mandy123 时间: 2009-11-11 21:32

f

作者: tin_wo 时间: 2009-11-12 09:15

tk

作者: ServantSaber 时间: 2009-11-12 16:41

huifu

作者: mellsa 时间: 2009-11-18 11:14

ff

作者: frych 时间: 2009-11-25 14:00

 r

作者: Vicky724 时间: 2009-12-15 06:46

w xian gkan

作者: jerrywang0 时间: 2010-4-15 18:35

qqq

作者: 0939 时间: 2010-5-4 00:13

[em50] 

作者: shuru1207 时间: 2010-5-7 03:24

thnx

作者: chenxu200312 时间: 2010-5-23 03:13

d

作者: 姜博士 时间: 2010-5-26 10:19

是

作者: micynthia 时间: 2010-5-29 21:33

aa

作者: creativepharos 时间: 2010-6-3 11:26

thanks

作者: mbbx5yw2 时间: 2010-7-1 05:24

我想啊想。。。

作者: lovemom 时间: 2010-7-13 22:43

thx

作者: corinnadeng 时间: 2010-8-5 18:12

 dfgd

作者: Anyone2010 时间: 2010-8-9 11:54

thks

作者: Anyone2010 时间: 2010-8-31 15:52

ta

作者: scofield1985 时间: 2010-10-13 22:33

d

作者: echopapa 时间: 2010-10-20 20:34

thx

作者: joanna1988 时间: 2010-10-31 12:49

f

作者: seraphiris0116 时间: 2010-11-9 20:31

thanks

作者: xwsh0325 时间: 2010-11-15 07:34

d

作者: jingh1981 时间: 2010-11-20 05:14

thx

作者: tangfaxi 时间: 2010-11-21 16:22

多谢

作者: btz2009 时间: 2010-11-21 17:25

xiex

作者: leoniegolly 时间: 2010-11-22 19:28

3x

作者: stellant 时间: 2010-11-26 22:23

thanks

作者: jc1188 时间: 2010-11-27 11:50

d

作者: 祈愿修神 时间: 2011-4-6 15:12

3

作者: petitemango 时间: 2011-4-21 18:02

 11

作者: hawaii_boyzsh 时间: 2011-5-20 10:53

ss

作者: gaoflex 时间: 2011-5-27 05:12

thank you!

作者: kepei7763 时间: 2011-5-27 21:22

thx

作者: shing1314 时间: 2011-8-19 19:30

thanks for sharing

欢迎光临 CFA论坛 (http://forum.theanalystspace.com/)