2022-03-27
The measurements made on a key performance indicator are as follows:- 123 106 114 128 113 109 120 111
user_27qwe
Skilled2022-04-22Added 375 answers
To test against
Sample mean
Sample standard deviation
Sample size
The test statistic:
which under follows a distribution with df.
Reject at a 5% level of significance if
The value of the test statistic
and critical value
Since ,we reject at 5% level of significance and we can conclude that the mean key performance indicator is significantly different from
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A)
B)
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D)
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