Answered step by step
Verified Expert Solution
Question
1 Approved Answer
A survey of 100 students is selected randomly on a large university campus. They are asked if they use a laptop in class to take
A survey of 100 students is selected randomly on a large university campus. They are asked if they use a laptop in class to take notes. The result of the survey is that
65 of the 100 students responded? "yes." An approximate 98?% confidence interval is ?(0.539?,0.761?).
Complete parts a through d below.
a) How would the confidence interval change if the confidence level had been 95% instead of 98%? The new confidence interval would be The new confidence interval would be (Round to three decimal places as needed.) b) How would the confidence interval change if the sample size had been 150 instead of 100? (Assume the same sample proportion.) The new confidence interval would be The new confidence interval would be (Round to three decimal places as needed.) c) How would the confidence interval change if the confidence level had been 99% instead of 98%? The new confidence interval would be The new confidence interval would be (Round to three decimal places as needed.) d) How large would the sample size have to be to make the margin of error one third as big in the 98% confidence interval? The new sample size would have to beStep by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started