Answered: For Americans using library services,…

Name: For Americans using library services, the American Library Association
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: For Americans using library services, the American Library Association claims that at most 67% of patrons borrow books. The library director in a town feels this is not true, so she asked a local college statistic class to conduct a survey. The class

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Topic Video

Question

100%

For Americans using library services, the American Library Association claims that at most 67% of patrons borrow books. The library director in a town feels this is not true, so she asked a local college statistic class to conduct a survey. The class randomly selected 100 patrons and found that 81 borrowed books. Did the class demonstrate that the percentage was higher in the town? Use

? = 0.01

level of significance.

Note: If you are using a Student's t-distribution for the problem, you may assume that the underlying population is normally distributed. (In general, you must first prove that assumption, though.)

State the p-value. (Round your answer to four decimal places.)

What is the possible proportion of patrons that do borrow books from this library? (Round your answers to four decimal places.)

We are 99% confident that the true population proportion of patrons in the town who borrow books is between ? and ? .

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 9 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Hypothesis Tests and Confidence Intervals for Means$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Similar questions