math  please help me
posted by Sejul .
65 chemical engineering students are from urban/suburban backgrounds.
(Success is defined as a C or better in the course.)
52 of the 65 students succeeded.
Another 55 students were from rural backgrounds; 30 of these students succeeded.
A Is there good evidence that the proportion of students who succeed is different for urban/suburban vs. rural backgrounds?
B) Estimate the difference between the success rates for all urban/suburban and rural students who plan to study chemical engineering. Use 90% confidence.
Respond to this Question
Similar Questions

math
There are 37 accounting classes with 26 students in each class. Estimate the total number of students in the accounting classes. A) 1,200 students B) 900 students C) 1,600 students D) 1,500 students 
Math
A math class has 25 students. There are 13 students who are only in the band, 4 students who are only on the swimming team, and 5 students who are in both groups. How many students are not in either group? 
Math (Statistics)
Five college engineering students are choosing specialized fileds of engineering to study. Each student is allowed to select 1 field. The available fields are Electrical Engineering (EE), Mechanical Engineering (ME), and Computer Engineering … 
MATH
At McLeod University, thirty percent of the students are in Engineering. Forty percent of Engineering students study Probabilistic Systems, and sixty percent of the students studying Probabilistic Systems are in Engineering. What percentage … 
Algebra
In a school of 464 students, 89 students are in the band, 215 students are on sports teams, and 31 students participate in both activities. How many students are involved in neither band nor sports? 
math***CHECK ANSWER***
please check this one answer. 3.everyone in andy's class has to do a science project. Out of the 20 students,80% have completed their project.how many students still need to finish their projects? 
ECE 201
Why is it important for teachers to understand studentsâ€™ culture and backgrounds in an effort to address challenging behavior? 
Math
There are 6 buses transporting students to a baseball game with 32 students On each buss. each row at thebaseball stadium seats eight students if the students fill up all the Rows of seats will the students need altogether. 
Math
Please explain how to do this 6[8 8 9 7[2 5 5 5 8 8 8 9 8[2 2 2 6 6 9 9 9[0 0 0 2 2 5 5 5 Key: 8[2 means 82 How many students scored 78? 
Math
All 500 students at Robinson Junior High were surveyed to find their favorite sport. How many more students played football than basketball?