Answered: b-1. Calculate the value of the test…

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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b-1. Calculate the value of the test statistic. Assume that o22 = 4.4 and oB² = 5.2. (Negative values should be indicated by a minus
sign. Round intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.)
Test statistic

Transcribed Image Text:A consumer advocate researches the length of life between two brands of refrigerators, Brand A and Brand B. He collects data (measured in years) on the longevity of 40 refrigerators for Brand A and repeats the sampling for Brand B. These data are measured in years. (You may find it useful to reference the appropriate table: z table or t table) Brand A Brand B Brand A Brand B 16 16 16 12 14 16 19 15 19 19 16 20 20 21 16 18 12 21 21 14 16 18 18 17 19 20 21 18 14 19 15 17 15 15 20 18 13 13 13 16 13 16 18 18 15 15 18 14 15 19 21 15 12 17 16 20 15 18 16 23 16 16 18 15 17 16 16 16 20 18 17 N O O 5 O 00 N CO N O Lo 00 s L o o m LO LO N H 1 d N H1 Hdd H d -H H d NNH H d O O o O O LO H 00 - 5 O m co c0 H 6 LO o Lo 00 H H D H12 H2 N 1- H N d - o LO LO o O O 00 591 H 0 O a 5 o5 97 21 1 H 2 2 H21 H1 d - d- H d 2 O 4 N a o o N O O O m m LO LO N LO ON O

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