In a study whether there is a difference between the average heights (in inches) of adult females born in two different countries, random samples yielded the following results: n₁ = 120 x₁ = 62.7 s₁ = 2.50 1₂150 ₂ 61.8 s₂ = 2.62 Find the P-value to test the null hypothesis that the corresponding population means are equal against the alternative hypothesis that they are not equal. Round off the z-statistic to two decimal places before finding the P-value.

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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In a study whether there is a
difference between the average
heights (in inches) of adult females
born in two different countries,
random samples yielded the
following results:
n₁
120 ₁62.7 s₁ = 2.50
1₂ 150 ₂ 61.8 s₂ = 2.62
Find the P-value to test the null hypothesis that the corresponding population means are
equal against the alternative hypothesis that they are not equal. Round off the z-statistic
to two decimal places before finding the P-value.
Transcribed Image Text:In a study whether there is a difference between the average heights (in inches) of adult females born in two different countries, random samples yielded the following results: n₁ 120 ₁62.7 s₁ = 2.50 1₂ 150 ₂ 61.8 s₂ = 2.62 Find the P-value to test the null hypothesis that the corresponding population means are equal against the alternative hypothesis that they are not equal. Round off the z-statistic to two decimal places before finding the P-value.
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