Steps for F-test, Mechanical Engineering

Steps for F-test

The Steps followed in the F-Test are as follows:

(A) State the hypothesis:

Ho: Relationship between Y and all Xs is not significant.
HA: Relationship between Y and all Xs is significant

(B) State the significant level:
                  
 α = 5%

(C) State the test statistics:

F = r2 /K
     (1 – r2)/n-k-1


(D) State the decision rule:

 

1380_Untitled.jpg

k = 1
n-k-1 = 10
α = 0.05
Fc  = 4.965

Computation of F statistics:

F =       0.565/1            
      (1-0.565)/(12 – 1 –1)        

  = 12.989                    

Conclusion:

Since the computed F > Fc then we reject Ho. Therefore the relationship between the labour cost and the number of units is significant.

 

Posted Date: 12/5/2012 5:49:41 AM | Location : United States







Related Discussions:- Steps for F-test, Assignment Help, Ask Question on Steps for F-test, Get Answer, Expert's Help, Steps for F-test Discussions

Write discussion on Steps for F-test
Your posts are moderated
Related Questions
proell governor,porter governor,watt governor

Compare the efficiency of Diesel, otto and Dual combustion cycle on the basis of same compression ratio and same heat input. In an otto cycle air at 17 o c and 1 bar is compressed

Expected quarterly sales in Year 1 (vehicles) The work content of a single unit of each product in each process has been estimated at: Using MS-Excel, calculate the workloads


Q. Explain about wire-frame model? A wire-frame model of an object is the simplest, but more verbose, geometric model that can be used to represent it mathematically in the com

Q. Material selection by temperature range 750° to 1100°F (400° to 600°C) ? Plain carbon steels are usually limited to a maximum operating temperature of 750°F (400°C).  There

what is cone friction?

Q. How can you test hardness of the prepared mould? Hardness test: The hardness of the prepared mould surface is tested to check the ramming density of the sand. The instrume

velocity ratio is 3 .pinion has 40 teeth. what would be the gear no of teeth?

In an engine working on Diesel cycle inlet pressure and tem are 1 bar and 17 o c respectively. Pressure at the end of adiabatic compression is 35 bar. He ratio of expansion i.e. af