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3a paper mill produces two grades of paper viz x and y because of raw material restrictions it cannot produce more than 400 tons of grade x
conflicts of interest and related change in medical researchthe significant increase in private industry drug studies has spawned three other changes
inherent forces fomenting conflicts of interestseveral forces have coalesced to increase the incidence of conflicts of interest in the medical
inability of nih fda to identify conflict of interestwhile federal regulations require that researchers receiving nih grants remain free of financial
medical industry payments to physiciansthe relationships between physicians and medical related companies in the united states generally acknowledged
statement of hypothesisthe two hypothesis i e null hypothesis h0 and alternative hypothesis h1 are so constructed
normal 0 false false false en-in x-none x-none
making decision lastly a decision should be arrived as to whether the null hypothesis is to be accepted or rejected in this
test statistic the next step is compute an appropriate test statistic which is based on an appropriate probability distribution it is
level of significance in testing a given hypothesis the maximum probability with which we would be willing to take risk
sources of hypothesis hypothesis may be developed from various sources some of the important sources are the followings1a
probability and non probability sampling the following s are some of the considerations for the selection of probability an
normal 0 false false false en-in x-none x-none microsoftinternetexplorer4
simple random sampling this is simplest and most popular technique of sampling in it each unit of the
panel samplinghere the initial samples are down on random basis and information from these is collected on regular
convenience sampling in convenience sampling selection the researcher chooses the sampling units on the basis of
other determinants of sample size1 the variability of elements within the population has become a very important
sample size in non propbabilitythe probability selection does not apply to purposive selection the size of the non
stratified sample sizethe sampling study has depended much on the stratified sample to reduce the sampling error
determining sample size for estimating poportionsit is necessary to determining the sample size for a problem involving
multiple objectives the sample may vary according to the objective of the research there may several objectives of
cost- sampling decisons sigma xmacr
cost the cost factor is a very important factor in determining the size of the sample the budget for research should be