Answer:
Given Data
Consider a study variable are unknown .
Here is jointly sufficient for
when be an rs of size n
(I) To test student's t- test
Here is unbaised for . Under we expect that observed should be very else to
Under
the distribution is completely specified and is symmetric about '0'
Under we expect that observed
If observed
, then we reject in favour of , where e is so choosen that , the choosen level of significance
Here , we reject vs at level , if observed
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4. Water samples of 100 cc each are taken periodically from a waste water plant run...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...