Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

A simple random sample of 49 8th graders at a large suburban middle school indicated that 89% of them are involved with some type of

A simple random sample of 49 8th graders at a large suburban middle school indicated that 89% of them are involved with some type of after school activity. Find the 95% confidence interval that estimates the proportion of them that are involved in an after school activity. a) [0.722, 0.978] b) [0.802, 0.978] c) [0.702, 0.928] d) [0.802, 0.778] e) [0.852, 0.857] f) None of the above

What will increase the width of a confidence interval? a) Decrease confidence level. b) Increase variance. c) Decrease variance d) Increase number in sample

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Advanced Engineering Mathematics

Authors: ERWIN KREYSZIG

9th Edition

0471488852, 978-0471488859

More Books

Students also viewed these Mathematics questions