Every year Tesla sends out a survey to their customers asking what their favorite thing about their vehicle is. Historically, 40% have said "it is electrically powered" 20% said "the design" 10% said "the touchpad" and 30% said "the leather interior". This year, Tesla conducted the survey and the results were as follows: 30% said "it is electrically powered", 25% said "the design", 40% said "the touchpad" and 5% said "the leather interior". A total of 100 Tesla drivers were surveyed. What is the appropriate test statistic? Please round to 2 decimal places as needed.

Emery pharmaceutical uses an unstable chemical compound that must be kept in an environment where both temperature and humidity can be controlled. emery uses 825 pounds per month of the chemical, estimates the holding cost to be 50% of the purchase price (because of spoilage), and estimates order costs to be $48 per order. the cost schedules of two suppliers are as follows: vendor 1 vendor 2 quantity price/lb quantity price/lb 1-499 $17 1-399 $17.10 500-999 $16.75 400-799 $16.85 1000+ $16.50 800-1199 $16.60 1200+ $16.25 (a) what is the economic order quantity for each supplier? (b) what quantity should be ordered and which supplier should be used? (c) the total cost for the most economic order sire is $