At a restaurant 12 ounces of ground beef is used to make 4 hamburger patties. The number of hamburger patties made is directly proportional to the number of ounces of ground beef used What is the constant of proportionality that relates the number of hamburger patties made to the number of ounces of ground beef used? A. 4
B. 1/4
C. 3
D. 1/3

And please don’t put a random answer or a link for points that’s not the point of this app :(

Atechnician compares repair costs for two types of microwave ovens (type i and type ii). he believes that the repair cost for type i ovens is greater than the repair cost for type ii ovens. a sample of 6767 type i ovens has a mean repair cost of $79.79$⁢79.79. the population standard deviation for the repair of type i ovens is known to be $19.18$⁢19.18. a sample of 5555 type ii ovens has a mean repair cost of $75.24$⁢75.24. the population standard deviation for the repair of type ii ovens is known to be $21.40$⁢21.40. conduct a hypothesis test of the technician's claim at the 0.050.05 level of significance. let μ1μ1 be the true mean repair cost for type i ovens and μ2μ2 be the true mean repair cost for type ii ovens. step 2 of 4 : compute the value of the test statistic. round your answer to two decimal places.