[问题] ADM2303作业讨论

[朝露如我降人间]

最初由 KpS 发布
请问怎么把那个表格弄出来啊,总是格式不对,
感谢信息

参考brother兄介绍的text converted to numerics

 

[朝露如我降人间]

最初由 bbrother_bbrothe 发布


到881.1一直都没错
1. Data-Sort dont use discending, use ascending the data.
2.u need to take the value of 881th and 882th, which are "428002" and "428395".
3. use the formula
90% percentile= X881+0.1(X882-X881)= 428002+0.1(428395-428002)=428041.3

Thus, 90% of the data in the column will lie below 522356.4.

Thus, 90% of the data in the column will lie below 522356.4
这句话我不太明白什么意思，谁能解释一下

 

[朝露如我降人间]

最初由 bbrother_bbrothe 发布
c) (4) Prepare a cumulative frequency diagram (ogive) of the net sales

Using

Graph-Emperical CDF

An example of this type of graph is provided on the notes by Prof Phansalker for the exercice on the hurricanes done in class. An ogive is a histogram with, a sub command of 'cumulative'. In other words is a histogram with cumulative values accross the bins. So in my conclusion, with confidence, an ogive is NOT a CDF.

To be convenient for you guys, this is the right route I believe:
Go to GRAPH -> HISTOGRAM -> SIMPLE -> SCALE -> Y-SCALE TYPE -> ACCUMULATE VALUES ACROSS BINS

Sorry, BROTHER, but still thank you for your contribution with all my heart, HAHA.

 

[朝露如我降人间]

2.f)
You're not going to describe a graph but comment on the SHAPE of the distribution. In this case, you may need only one graph or two depending on the clearness of your graph(s).

Shape: how does it look like? Skewed? Gaussian? etc..

 

[KpS]

最初由 朝露如我降人间 发布

参考brother兄介绍的text converted to numerics

不好意思,我还是不会把表格弄出来
copy 那几段话到minitab里---这样是错的
谁知道啊
谢了

 

[hunterx]

how come i saw ur 881th is 521984 and 882th is 525708 at this morning, but now, they r changed to 881th is 428002 and 882th is 428395??????why why why???can anybody tell me the really number of 881th and 882th????thank you very much for everybody lar...!

 

[bbrother_bbrothe]

最初由 hunterx 发布
how come i saw ur 881th is 521984 and 882th is 525708 at this morning, but now, they r changed to 881th is 428002 and 882th is 428395??????why why why???can anybody tell me the really number of 881th and 882th????thank you very much for everybody lar...!

881th is 428002 and 882th is 428395

These two numbers are correct

 

[朝露如我降人间]

最初由 bbrother_bbrothe 发布


881th is 428002 and 882th is 428395

These two numbers are correct

agree

 

[hunterx]

thank you very much.....and by the way, i wanna ask everyboddy, how do u answer the question 2 g)........thank you for your sharing....!

 

[mandylin1224]

再问一个白痴问题，这个assignment是不是一定要在学校的lab做啊？lab的电脑怎么login啊？T_T偶好像什么都不会~~~

 

[朝露如我降人间]

最初由 mandylin1224 发布
再问一个白痴问题，这个assignment是不是一定要在学校的lab做啊？lab的电脑怎么login啊？T_T偶好像什么都不会~~~

login name: your lastname's initial + your id #
password: your birthday(6 digits)
for example: my name is Dean Great, student # is 1234567 and borned in 1984, April 29th
then my login name is G1234567 and password is 830429
got it?

 

[朝露如我降人间]

最初由 hunterx 发布
thank you very much.....and by the way, i wanna ask everyboddy, how do u answer the question 2 g)........thank you for your sharing....!

see, there are many differences btw a fiscal year and a calendar year. from this view, you can get the point

 

[mandylin1224]

楼上的大大，好人啊~~~

 

[朝露如我降人间]

一般一般了

 

[酸梅汤]

最初由 朝露如我降人间 发布

see, there are many differences btw a fiscal year and a calendar year. from this view, you can get the point

这跟没说差不多~~~
其实可以这样做，把2001年一年的mean 和SD算出来，然后和a 的答案进行比较。