In a study to test whether or not there is a difference between the average heights of adult females in two different countries, random samples of size 21 = 120 and n2 = 150 yielded I= 62. 7 inches and = 61. 8 inches. Extensive studies of a similar kind have shown that it is reasonable to let o1 = 2. 5 inches and o1 = 2. 62 inches. Test at the 0.05 level of significance whether the difference between these two sample means is significant. Instructions: Assume 8 - 0, in addressing the problem obtain the value of the test statistic and its corresponding p- value up to four decimal places. Oz = 2. 8772; p– value = 0.0040 Oz = 2. 8772; p - value = 0.0020 Oz= -2. 8772; p- value = 0.9979 Oz = 2. 8772; p – value = 0.9980

In a study to test whether or not there is a difference between the average heights of adult females in two different countries, random samples of size 21 = 120 and n2 = 150 yielded I= 62. 7 inches and = 61. 8 inches. Extensive studies of a similar kind have shown that it is reasonable to let o1 = 2. 5 inches and o1 = 2. 62 inches. Test at the 0.05 level of significance whether the difference between these two sample means is significant. Instructions: Assume 8 - 0, in addressing the problem obtain the value of the test statistic and its corresponding p- value up to four decimal places. Oz = 2. 8772; p– value = 0.0040 Oz = 2. 8772; p - value = 0.0020 Oz= -2. 8772; p- value = 0.9979 Oz = 2. 8772; p – value = 0.9980

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section: Chapter Questions

Problem 8SGR

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