Two types of flares are tested for their burning times ( in minutes ) and sample results are given below: Brand X: n1= 35     x1= 19.4       s1 = 1.4 Brand Y: n2 = 40     x2 = 15.1     s2 = 0.3 Refer to the sample data to test the claim that the two populations have equal means. Use a 0.05 significance level.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter4: Equations Of Linear Functions
Section: Chapter Questions
Problem 8SGR
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Two types of flares are tested for their burning times ( in minutes ) and sample results are
given below:

Brand X: n1= 35     x1= 19.4       s1 = 1.4
Brand Y: n2 = 40     x2 = 15.1     s2 = 0.3

Refer to the sample data to test the claim that the two populations have equal means. Use a 0.05 significance level.

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