A random sample of 95 vehicles is taken from a large parking lot at an office park. Below is the type of each vehicle, and wheth
er it is owned or leased by the driver. A chi-square test will be conducted to determine if there is an association between type of vehicle and method of obtaining the vehicle. Which of the following expressions represents the expected count of leased SUVs? (A) 10
(B) \frac{10}{95}9510
(C) \frac{(35)(30)}{95}95(35)(30)
(D) \frac{(10-11.1)^2}{11.1}11.1(10−11.1)2
(E) \frac{(11.1-10)^2}{10}10(11.1−10)2
The chi square test is used to determine the association between the different types of vehicles. The expected count for the SUV's is represented by the formula given in the option C.
<span>You are under contract to design a storage building with a square base and a volume of 12000 cubic feet. the cost of materials is $4 per square foot for the floor, $18 per square foot for the walls and $6 per square foot for the roof. find the width of the square base that minimizes the cost of materials. XD
