Use a 95% confidence interval to estimate the fraction of single students. b. It is estimated that fewer than 25% of Math 101 students in the university are single. Does this seem to be valid? Use a 0.05 level of significance.

Use a 95% confidence interval to estimate the fraction of single students. b. It is estimated that fewer than 25% of Math 101 students in the university are single. Does this seem to be valid? Use a 0.05 level of significance.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

100%

A random sample of 75 Math 101 students in a certain university is selected and 54 are found to be in a
relationship.
a. Use a 95% confidence interval to estimate the fraction of single students.
b. It is estimated that fewer than 25% of Math 101 students in the university are single. Does this seem to be valid? Use
a 0.05 level of significance.

Definition Definition Method in statistics by which an observation’s uncertainty can be quantified. The main use of interval estimating is for describing a range that is made by transforming a point estimate by determining the range of values, or interval within which the population parameter is likely to fall. This range helps in measuring its precision.

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