a- 3. What are the weights for computing the first principal component scores? Note: Round intermediate calculations to at least 4 decimal places and your final answers to 4 decimal places. Negative values should be indicated by o minus sign. Use the dato with the corretation matrix to perform PCA. Keep ali the other options the some as in part a. b.1. How marny principal compossents were created? Perform principal component analysis on the accompanying data set. Clisk here for the Excel Data File Use the data with the Covarlance method and choose Smallest number components explaining at least. 75% of variance: 0.1. How many principal components were created? 6 2. What percent of total variance is accounted for by the calculated principal components? Note: Round intermediate colculations to ot least 4 decimal places and your final answer to 4 decimal places. b-2. What percent of total varlance is accounted for by the calculated principal components? Note: Round intermediate calculations to at least 4 decimal places and your final answer to 4 decimal places. b-3. What are the weights for computing the first principal component scores? Note: Round intermediate colculations to ot least 4 decimal ploces and your final answers to 4 decimal places. Negative values should be indicoted by o minus sign