Check here for instructional material to complete this problem.\
Evaluate the following formula for $\bar{x}_1 = 97.63$, $\bar{x}_2 = 97.45$, $\mu_1 - \mu_2 =$\
$\sigma_1 = 0.98$, $\sigma_2 = 0.69$, $n_1 = 12$, and $n_2 = 42$.\
$z = \frac{(\bar{x}_1 - \bar{x}_2) - (\mu_1 - \mu_2)}{\sqrt{\frac{\sigma_1^2}{n_1} + \frac{\sigma_2^2}{n_2}}}$\
z = \boxed{} (Round to two decimal places as needed.)
