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Chapter 10: Q. 10.118 (page 441)

H2:渭1<渭2

Short Answer

Expert verified

Since the value of the test statistic is fall in the accepted region. Thus, the null hypothesis is not rejected.

Step by step solution

01

Given Information

The hypothesis is

H0:渭1=渭2,Ha:渭1<渭2

and the level of significance is 0.1.

02

Explanation

Compute the sample mean as follow:

d炉=鈭�dn

=-177

=-1.714

The value of the standard deviation is given below:

sd=鈭�di2-鈭�di2nn-1

=122-(-12)277-1

=4.1115

The test statistics are,

t=d炉sdn炉

Replace the above value in the given equation

z=-1.7144.11157=-1.1

The value of the degree of freedom is,

df=n-1=7-1=6

The critical value for the level of significance of 0.1is -1.44.

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Most popular questions from this chapter

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