Kizspy | Question: 113
(Choose 1 answer)
(See picture)
Α. 2.294
Β. 1.515
C. 1.896
D. 3.456
Checking the lengths (cm) of randomly selected products from two manufacturing plants, we get the following data:
n_{1}=26, n_{2}=23, \overline{x}_{1}=6.9 \overline{x}_{2}=7.2, s_{1}=1.26, s_{2}=1.76
Use \alpha=0.05 and assume equal variances, what is the pooled standard deviation?
