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Test Statistic
The next step is compute an appropriate test statistic which is based on an appropriate probability distribution. It is used to test whether the null hypothesis set up should be accepted or rejected. For this purpose we use Z distribution under normal curve for large sample where the sample size is equal to or larger than 30 (n ≥ 30) and the distribution for small sample where the sample size n less than 30 ( n< 30).
management wants to know how many supervisors should be hired, and what could be the optimum workload distribution to be applied, given a number of constraints
INFORMATION RESOURCES: Information resources are of two kinds, namely, Documentary and Non-Documentary Sources. Documentary Sources: A document embodies thought. I
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Methods of calculation of standard deviation a. Calculation of Standard Deviation - Individual Series: There are two methods of calculating standard deviation in an ind
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