Does the data indicate that both production lines produce products with the same mean concentration ratio of ald ? Use =0.01 assume equal variances

What is the P-value

Find a 90% confidence interval for the true difference in the mean concentration

excel image is fine

Production Line 1 (%)	Production Line 2 (%)
9.9		10.2
9.4		10
10		10.7
10.3		10.5
10.6		10.6
10.3		10.2
9.3		10.4
9.8		10.3