Descripitve Stats Paper free essay sample

Test the hypothesis that calls by surgical–medical patients are independent of whether the patients are receiving Medicare. Question 36: Grades in a statistics course and an Operation Research course taken simultaneously were as follows for a group of students. Statistics Grade| Operation Research Grade| | A| B| C| Other| A| 25| 6| 17| 13| B| 17| 16| 15| 6| C| 18| 4| 18| 10| Other| 10| 8| 11| 20| Are the grade in Statistics and Operation Research related? Question 37: An experiment with artillery shells yields the following data on the characteristics of lateral deflections and ranges. Would you conclude that deflection and range are independent? Range (yards)| Lateral deflection| | Left| Normal| Right| 0-1999| 6| 14| 8| 2000-5999| 9| 11| 4| 6000-11999| 8| 17| 6| Question 38: A study is being made of the failures of an electronic component. There are four types of failures possible and two mounting position for the device . The following data have been taken: Mounting position| Failure type| | A| B| C| D| 1| 22| 46| 18| 9| 2| 4| 17| 6| 12| Would you conclude that the type of failure is independent of the mounting position? Question 39: A random sample of students are asked their opinions on a proposed core curriculum change. We will write a custom essay sample on Descripitve Stats Paper or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page The results are presented here: Class| Opinion| | Favoring| Opposing| Freshman| 120| 80| Sophomore| 70| 130| Junior| 60| 70| Senior| 40| 60| Test the hypothesis that the opinions are independent of the class groupings. Question 40: Fabric is graded into three classifications: A, B and C. The results below were obtained from five looms. Is the fabric classification independent of the loom? Loom| Number of pieces of Fabric in Fabric Classification| | A| B| C| 1| 185| 16| 12| | 190| 24| 21| 3| 170| 35| 16| 4| 158| 22| 7| 5| 185| 22| 15| Question 41: An article in the journal of Marketing Research reports a study of the relationship between facility conditions at gasoline stations and the aggressiveness of their gasoline marketing policy. A sample of 441 gasoline stations were investigated with the results shown below obtained. Is there evidence that gasoline pricing strategy and facility conditions are independent? Policy| Condition| | Substandard| Standard| Modern| Aggressive| 24| 52| 58| Neutral| 15| 73| 86| nonaggressive| 17| 80| 36|