Problems:
1.Determine if there is a significant difference between the genders on average student height and report the 95% confidence interval.
|
F
|
|
|
Fp
|
|
|
Fconclusion
|
|
|
hypotheses
|
|
|
α
|
|
|
TS
|
|
|
p
|
|
|
conclusion
|
|
|
lower limit
|
|
|
upper limit
|
|
2.Determine if there is a significant difference between the number of hours students study and the number of hours students work and report the 95% confidence interval.
|
hypotheses
|
|
|
α
|
|
|
TS
|
|
|
p
|
|
|
conclusion
|
|
|
lower limit
|
|
|
upper limit
|
|
3.Determine if there is a significant difference between males and females in regard to the average number of hours they watch TV and report the 95% confidence interval.
|
F
|
|
|
Fp
|
|
|
Fconclusion
|
|
|
hypotheses
|
|
|
α
|
|
|
TS
|
|
|
p
|
|
|
conclusion
|
|
|
lower limit
|
|
|
upper limit
|
|
4.The average faculty salaries data file includes the average salaries for males ($1000/year) and for females ($1000/year) from assistant professors from the same university (i.e., these are dependent samples). Determine if there is a difference in the average faculty salaries between males and females and report the 95% confidence interval.
|
hypotheses
|
|
|
α
|
|
|
TS
|
|
|
p
|
|
|
conclusion
|
|
|
lower limit
|
|
|
upper limit
|
|
5.The ozone column thickness data file includes the thickness for January and February for 15 different years (i.e., these are dependent samples). Determine if three is a difference in the ozone column thickness between January and February and report the 95% confidence interval.
|
hypotheses
|
|
|
α
|
|
|
TS
|
|
|
p
|
|
|
conclusion
|
|
|
lower limit
|
|
|
upper limit
|
|