ThatDudeLv1

7 Jul 2022

****URGENT****** pls help, this is due in a couple of hours. These are answered, but plz let me know if the answers are wrong. If they are wrong plz let me know what the correct answers are. Directions and excel info are there

Use the data with the Covariance method and choose Smartest # components explaining at least 75% of variance.

a-1. How many principal components were created?

 

Number of principal components

 

a-2. What percent of total variance is accounted for by the calculated principal components? (Round intermediate calculations to at least 4 decimal places and your final answer to 4 decimal places.)

 

Percent of total variance

99.9284

%

 

a-3. What are the weights for computing the first principal component scores? (Round intermediate calculations to at least 4 decimal places and your final answers to 4 decimal places. Negative values should be indicated by a minus sign.)

 

the weights for computing the first principal component scores	-0.9999
the weights for computing the first principal component scores	-0.0083
the weights for computing the first principal component scores	0.0079

 

b-1. How many principal components were created?

 

Number of principal components

2

 

b-2. What percent of total variance is accounted for by the calculated principal components? (Round intermediate calculations to at least 4 decimal places and your final answer to 4 decimal places.)

 

Percent of total variance

90.6543

%

 

b-3. What are the weights for computing the first principal component scores? (Round intermediate calculations to at least 4 decimal places and your final answers to 4 decimal places. Negative values should be indicated by a minus sign.)

 

the weights for computing the first principal component scores	-0.6329
the weights for computing the first principal component scores	-0.6430
the weights for computing the first principal component scores	0.4313