Out of 100 adults surveyed in a small town, 44 had at least one child. Based on this, construct a 80% confidence interval for the true population proportion of people with at least one child. Give the answer in the form of a confidence statement.
Out of 100 adults surveyed in a small town, 44 had at least one child. Based on this, construct a 80% confidence interval for the true population proportion of people with at least one child. Give the answer in the form of a confidence statement.
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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- Out of 100 adults surveyed in a small town, 44 had at least one child. Based on this, construct a 80% confidence interval for the true population proportion of people with at least one child. Give the answer in the form of a confidence statement.
Choose only one confidence interval calculator for each problem.
- Confidence Interval for means with the Population Standard deviation σ Known
- Confidence Interval for means with the Population Standard Deviation σ UnKnown
1.) what is the sample mean=
2.) Confindence level=
3.) Standard deviation=
4.)
2.) In a survey, 73 parents were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $40.75 and standard deviation of $3.23. Find the confidence interval at a 95% confidence level.
p hat=
sampl size=
confidence level=
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