Sex
Industrial Engineering
Mechanical Engineering
Electrival Engineering
Civil Engineering
Total
Male
15
6
7
2
30
Female
10
4
3
6
23
Total
25
10
10
8
53
1.) Based on your answers on part a and d, are sex and college
major of students in this class independent? Provide a mathematical
argument? (Problem A asked probability students are male which was
30/53=0.57 and Problem D asked probability student is industrial
engineer given the student is male which ended up...
Mean entry-level salaries for college graduates with mechanical
engineering degrees and electrical engineering degrees are believed
to be approximately the same. A recruiting office thinks that the
mean mechanical engineering salary is actually lower than the mean
electrical engineering salary. The recruiting office randomly
surveys 50 entry level mechanical engineers and 52 entry level
electrical engineers. Their mean salaries were $46,300 and $46,800,
respectively. Their standard deviations were $3440 and $4250,
respectively. Conduct a hypothesis test at the 5% level...
Mean entry-level salaries for college graduates with mechanical
engineering degrees and electrical engineering degrees are believed
to be approximately the same. A recruiting office thinks that the
mean mechanical engineering salary is actually lower than the mean
electrical engineering salary. The recruiting office randomly
surveys 40 entry level mechanical engineers and 50 entry level
electrical engineers. Their mean salaries were $45,200 and $46,300,
respectively. Their sample standard deviations were $3,880 and
$4,190, respectively. Conduct a hypothesis test to determine if...