A sample of 250 workers aged 16 and
older produced an average length of time with the current employer ('job tenure') of 4.4 years with a standard deviation of 3.8 years. Construct a 99% confidence interval for the mean job tenure of all workers aged 16 and older.
pls respect
older produced an average length of time with the current employer ('job tenure') of 4.4 years with a standard deviation of 3.8 years. Construct a 99% confidence interval for the mean job tenure of all workers aged 16 and older.
pls respect
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°EXPLANATION;
{ A sample of 250 workers an average of 4.4 years with a standard Deviation of 3.8 Years }
SE= 2.58 ×38/
[tex] \sqrt[]{250} = 0.619[/tex]
CI = ( 4.4 - 0.619 )
=( 3.781. 5.019