Question 1
A study of soft drink and smoking habits was conducted. Of 12,580 people who said they consume soft drinks weekly, 2694 said they were smokers. Of 14,873 who said they almost never consume soft drinks, 2497 were smokers.
To find the point estimate to construct a confidence interval for the difference between the proportions of smokers in the group that almost never consumes soft drinks and in the weekly consummation of soft drinks group, we let pā be [Select]
and p2 be [Select]
Question 2
A study of soft drink and smoking habits was conducted. Of 12,580 people who said they consume soft drinks weekly, 2694 said they were smokers. Of 14,873 who said they almost never consume soft drinks, 2497 were smokers.
Find the point estimate to construct a confidence interval for the difference between the proportions of smokers in the group that almost never consumes soft drinks and in the weekly consummation of soft drinks group. Round to four decimal places.
Question 3
Use the data from the exercise above, construct a 96% confidence interval for the difference between the proportions of smokers in the group that almost never consumes soft drinks and in the weekly consummation of soft drinks group.
The lower bound of the confidence interval is _____. Round to three decimal places.
Question 4
Use the data from the exercise above, construct a 96% confidence interval for the difference between the proportions of smokers in the group that almost never consumes soft drinks and in the weekly consummation of soft drinks group.
The upper bound of the confidence interval is _____. Round to three decimal places.
Question 5
Based on your findings on confidence interval for the difference between the proportions of smokers in the group that almost never consumes soft drinks and in the weekly consummation of soft drinks group, what is the conclusion?
Check all that apply.
The proportions of smokers in the group that almost never consumes soft drinks is smaller than in the weekly consummation of soft drinks group.
It is reasonable to conclude that there is no difference between the proportions of smokers in the group that almost never consumes soft drinks and in the weekly consummation of soft drinks group.
The proportions of smokers in the group that almost never consumes soft drinks is more than in the weekly consummation of soft drinks group.
There is a statistically significant difference between the proportions of smokers in the group that almost never consumes soft drinks and in the weekly consummation of soft drinks group.
