Google will choose the title they feel fit the page best. Often that means that they will use your meta title but in some cases they will render a different one than you have set.
Sorry mate, yes I meant Google Analytics for WordPress. The tick box for adding the tracking code is in the integrations tab in Woocommerce settings. In the integration tab there is also a field for inserting you analytics tracking code.
I simply installed the Yoast SEO plugin, put the analytics code in the “Gooogle Analytics ID” field in the integration tab and ticked the box saying “add tracking code for e-commerce”.