Here are the week's top business stories from the Editors of Twin Cities Business:

Amazon Rolls Out One-Hour Delivery In Twin Cities

The Prime Now program is available seven days a week.

UnitedHealth Group To Hire 1,700 Workers In Next Six Month

The additional employees are needed as business at the health insurer surges.

Stratasys Subsidiary MakerBot Slashes Workforce Again

The 20 percent staff reduction is MakerBot's second such restructuring effort this year.

Code42 Nabs $85M Investment

It's the biggest tech investment so far this year in the Twin Cities.

Former Starkey Execs Dismissed Over Dispute To Promote CEO’s Stepson, Lawsuit Alleges

A lawsuit filed Friday by Keith Guggenberger claims Starkey CEO Bill Austin wrongfully terminated the executives and even badmouthed him around the office.