$n_1 = 9$ and $n_2 = 7$ [\lt 30 so it is a small sample] $$\overline x_i=196.42 \space and \space \overline x_2=198.82$$

$\sum (x_{1i}-\overline x_1)^2=26.940 \\ \sum (x_{2i}-\overline x_2)^2=18.73$

Step 1:

Null Hypothesis $(H_0): µ_1 = µ_2$ [i.e the samples are drawn from the same population]

Alternative Hypothesis $(H_a): µ_1 …