14 Bags of a certain brand Of tortilla Chips claim to have a net Weight of 14 ounces, Net Weights actually vary slightly from bag to bag and are Normally distalbuy With mean . A representative of a Consumer advocacy group wishes to see if there is any evidence that the mean net weight is less than advertised and So intends to fest the hypotheses HQ: P = ly and HailLly. Taking a random Sample of $1 bags, they Find the mean to be 13.8 and the standard deviation 0.9. Calculate the test statistic