Answered: alculate the conditional probability of…

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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a) Calculate the conditional probability of individuals who reported seeing a ghost given they were in
the age group of 18-29 (Round your final answer to four decimal places)

b) Construct an appropriate hypothesis test to determine whether or not there is an association between
experiencing phenomena such as seeing a ghost and the age group you are in. Write the appropriate
null/alternative hypothesis and carry out the test. Use a significance level of alpha = 0:01

The table below shows the results from a study to ascertain the number of U.S. adults
who had experience phenomena such as seeing a ghost. A representative sample of adults (ages 18 and
over) in the U.S. were interviewed in their homes during the summer. The results when respondents wer
asked about seeing a ghost are shown below:
Reported Seeing a Ghost
Age
Yes
No
18-29
212
1313
30 or over
456
3912

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