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 KnownConfidence Interval for means with the Population Standard Deviation σ UnKnown 1.) what is the sample mean=2.) Confindence level=3.) Standard deviation=4.) Sample size= 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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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.) Sample size=

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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