In a survey, 19 people were asked how much they spent on their child's last birthday gift. The results wereroughly bell-shaped with a mean of $38 and standard deviation of $12. Construct a confidence interval at a80% confidence level.Give your answers to two decimal places for each part. You may carry the rounding down throughout theproblem.1. State the value of the estimate of the population mean.2. Calculate value of the standard error.3. Determine the value of z or t that you need to use for your confidence interval, and state it.

Given,sample size(n)=19sample mean(x¯)=38standard deviation(s)=12degrees of…

Answered: In a survey, 19 people were asked how…

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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