1: Calculate the value of the test statistic (Keep 2 decimal places)  2: What is the degrees of freedom for this test  3: Find the p-value within the accuracy of the tables (i.e. an interval, 0.05 < p-value < 0.10) 4: Based on your p-value we would _______________ (reject/fail to reject)  the null hypothesis. There is ______________________ (significant/insignificant) evidence that at least one of the proportions is different from assumed.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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 1: Calculate the value of the test statistic (Keep 2 decimal places)

 2: What is the degrees of freedom for this test

 3: Find the p-value within the accuracy of the tables (i.e. an interval, 0.05 < p-value < 0.10)

4: Based on your p-value we would _______________ (reject/fail to reject)  the null hypothesis. There is ______________________ (significant/insignificant) evidence that at least one of the proportions is different from assumed.

A Gallop Poll in 2015 found that 75% of respondents believed in an afterlife, 15%
were not sure or didn't have an opinion and 10% didn't believe in an afterlife.
Suppose that a survey taken this year of 1000 randomly selected people had the
following results.
Believe in an afterlife?
Yes
Not sure or no opinion
No
Frequency
800
105
95
If we wish to test:
H. : Pyes
0. 75, Pnot sure
0. 15, pno = 0. 10
Ha : At least one is different
using alpha = 5%
Transcribed Image Text:A Gallop Poll in 2015 found that 75% of respondents believed in an afterlife, 15% were not sure or didn't have an opinion and 10% didn't believe in an afterlife. Suppose that a survey taken this year of 1000 randomly selected people had the following results. Believe in an afterlife? Yes Not sure or no opinion No Frequency 800 105 95 If we wish to test: H. : Pyes 0. 75, Pnot sure 0. 15, pno = 0. 10 Ha : At least one is different using alpha = 5%
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