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(d) () (ii) (ii) Write down the x* test statistic. Write down the p-value. State the conclusion for the test in context. Give a reason for your answer.

(d) () (ii) (ii) Write down the x* test statistic. Write down the p-value. State the conclusion for the test in context. Give a reason for your answer.

MATLAB: An Introduction with Applications
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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(d) (i) (ii) (iii) Write down the x² test statistic. Write down the p-value. State the conclusion for the test in context. Give a reason for your answer.
Transcribed Image Text:(d) (i) (ii) (iii) Write down the x² test statistic. Write down the p-value. State the conclusion for the test in context. Give a reason for your answer.
A group of 1280 students were asked which electronic device they preferred. The results per age group are given in the following table. Preferred device Laptop Tablet Mobile phone Total 11-13 143 205 72 420 Age 14-16 160 224 128 512 17-18 153 131 64 348 Total 456 560 264 1280
Transcribed Image Text:A group of 1280 students were asked which electronic device they preferred. The results per age group are given in the following table. Preferred device Laptop Tablet Mobile phone Total 11-13 143 205 72 420 Age 14-16 160 224 128 512 17-18 153 131 64 348 Total 456 560 264 1280
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