Greater reliance on online shopping during the Covid-19 pandemic has been a boon for Amazon’s standing in the grocery market. In polling 10,000 U.S. consumers and evaluating the 56 biggest retailers in the $1 trillion grocery market, consumer data science firm dunnhumby found Amazon to be shoppers’ preferred retailer for groceries, beating out Trader Joe’s, H-E-B and other regional and national chains. Consumers have turned to online grocery shopping and delivery like never before during…