a.
: Population average number of books sold by sales person who has participated in the new training
: Population average number of books sold by sales person who has not participated in the new training
a. Null hypothesis : Ho: There is no difference in the average number of books sold ;
Alternate Hypothesis : Ha : There is difference in the average number of books sold ; (Two Tailed test)
Equal Variance assumed.
Given,
Given | |
n1 : Sample Size of Sample 1(Training) | 22 |
n1 : Sample Size of Sample 2 (No Training) | 27 |
: Sample Mean of Sample 1 | 482 |
: Sample Mean of Sample 2 | 465 |
s1 : Sample Standard Deviation of Sample 1 | 43 |
s2 : Sample Standard Deviation of Sample 2 | 39 |
Level of Significance : | 0.05 |
Degrees; of; freedom : ( n1+n2-2=22+27-2=47) | 47 |
b. Decision rule
For two tailed test :
For Two tailed test; Fail to reject null hypothesis if Calculated Value of 't' is within critical values i.e and
c.
As Calculated Value is with in the Critical Values i.e.( -2.0117 < 1.4495 < 2.0117 ) Fail To Reject Null Hypothesis
There is not sufficient evidence to indicate a difference in the average number of books sold at the 0.05 significance level.
(3) The Eastern Publishing Company hires college students to sell books during the summer The company...
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