Help mee :(

ik000

New Member
Joined
Jun 29, 2014
Messages
2
I learn engeneering chemistry in Sofia university, so the second semester i have learned statistics. Now i have a coursework, witch includes a list of alcohols with indexes N[c], W, S[ox], X', X'^, TMand Tb witch is in Celsius.
First i need to find correlation between them, but i dont know how to approach. :(
Then, if is possible for some of these indexes to be in result of linear combination from other indexes
I'll need to find regression equation like T= b
O+ sum(bx), where T is burning temperature, b are parameters obtained
by the method of least squares and x are topochemical indexes
And the last one is "Is there any "jumping" points in the results?

N[c]WS[ox]X'X'^TMTb, ˚C
1Methanol11110,4472164,7
2Ethanol2431,414211,0233178,3
31-Propanol31061,914211,5233197,2
42-Propanol3951,732051,413282,3
51-Butanol420102,414212,02331117,7
62-Butanol41882,270051,9509299,6
72-Methyl-1-Propanol41892,270051,87922107,9
82-Methyl-2-Propanol416721,7236382,4
91-Pentanol535152,914212,52331137,8
102-Pentanol532122,770052,45092119
113-Pentanol531112,808062,48882115,3
122-Methyl-1-butanol531132,808062,41712128,7
133-Methyl-1-butanol532142,770052,37922131,2
142-Methyl-2-butanol528102,560662,28433102
153-Methyl-2-butanol529112,642732,32373111,5
162,2-Dimethyl-1-propanol528122,560662,16983113,1
171-Hexanol656213,414213,02331157
182-Hexanol652173,270052,95092139,9
193-Hexanol650153,308062,98882135,4
202-Methyl-1-pentanol650183,308062,91712148
213-Methyl-1-pentanol650193,308062,91712152,4
224-Methyl-1-pentanol652203,270052,87922151,8
232-Methyl-2-pentanol646143,060662,78433121,4
243-Methyl-2-pentanol646153,180732,86163134,2
254-Methyl-2-pentanol648163,125892,80683131,7
262-Methyl-3-pentanol646143,180732,86163126,5
273-Methyl-3-pentanol644133,121322,8453122,4
282-Ethyl-1-butanol648173,346062,9552146,5
292,2-Dimethyl-1-butanol644163,121322,73053136,8
302,3-Dimethyl-1-butanol646173,180732,78993149
313,3-Dimethyl-1-butanol646183,060662,66983143
322,3-Dimethyl-2-butanol642132,943372,66714118,6
332,3-Dimethyl-2-butanol642142,943372,62434120
341-Heptanol784283,914213,52331176,3
351-Octanol8120364,914214,02331195,2
361-Nonanol9165454,914214,52331213,1
371-Decanol10220555,914215,02331230,2

<colgroup><col><col><col span="7"></colgroup><tbody>
</tbody>
I need this for tommorow, please somebody help me :(
 

Excel Facts

Why does 9 mean SUM in SUBTOTAL?
It is because Sum is the 9th alphabetically in Average, Count, CountA, Max, Min, Product, StDev.S, StDev.P, Sum, VAR.S, VAR.P.

Rukt

Board Regular
Joined
Jan 21, 2013
Messages
120
ik000,

Some pointers:
  • If there are known relationships between the indices for each alcohol, you might get an idea of what relationships you should expect to find by looking in the textbook.
  • An effective way of identifying trends and relationships is to put your data in a graph. For instance, a scatter plot with connected points, with 'number of carbons' as the independent variable, and the other parameters on the Y-axis, with a series for each compound.
  • Once you've identified possible relationships, you could use the LINEST function to determine regression parameters

Good luck,
Rukt
 

ik000

New Member
Joined
Jun 29, 2014
Messages
2
ok, but i don't understand relation between witch data? i mean relation between X' and X'^ or other relation?
 

Rukt

Board Regular
Joined
Jan 21, 2013
Messages
120
Well, a relationship between any set of parameters... For instance, is burning temperature related to the number of carbon atoms, or their arrangement? What link do you expect to find between X' and X'^? (And would it be useful for us to know what they are?)
 

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