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
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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![In a study to test whether or not there is a ditference between the average heights of
adult females in two different countries, random samples of size 1 = 120 and
n2 = 150 yielded I = 62.7 inches and I = 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](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa49fbd7d-46ee-4b43-9d97-aa10d03bbcdd%2F114b9bc0-f834-4940-9778-58a3e7e05803%2Fkm9tw7_processed.png&w=3840&q=75)
Transcribed Image Text:In a study to test whether or not there is a ditference between the average heights of
adult females in two different countries, random samples of size 1 = 120 and
n2 = 150 yielded I = 62.7 inches and I = 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
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