So this is the problem set up:
32% of americans are in favor of outlawing cigarettes.
200 random americans were asked if they are in favor
54 were in favor of outlawing cigarettes
Overall question: At a = 0.05, is there sufficient evidence to conclude that less than 32% of Americans are in favor of outlawing cigarettes?
I've got step I:
H0 : u = .32
Ha: u != .32
I need help with the rest (I'm stuck and don't know where to go from here!):
Step II: Standardized statistic and its value (this is all it says)
Step III: Decision rule
Step IV: Conclusion
A couple more problems that I'm not sure how to do:
2: Pulse rates of a random sample of 6 patients were recorded before and after given a certain drug:
Patient Before After
1 82 78
2 81 80
3 83 76
4 80 81
5 85 79
6 81 75
Let ud be the mean reduction in the pulse rates due to the drug and assume that the population of paired differences is normally distributed.
a) Find a 95% confidence interval for ud.
What I have so far:
ud = 3.83
n = 6
I think once I get this far I can do the rest.
Thanks for all your help!!!!