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in reporting the results of their survey of a simple random sample of us registered voters pollsters claim 95
1 as a rule of thumb under what conditions should the finite population correction be employed in determining
the personnel manager of a firm with 200 employees has selected a simple random sample of 40 employees and examined
of 1200 undergraduates enrolled at a university a simple random sample of 600 have been surveyed to measure student
a local environmental agency has selected a simple random sample of 16 homes to be tested for tap-water lead
given the following observations in a simple random sample from a population that is approximately normally distributed
a consumer magazine has contacted a simple random sample of 33 owners of a certain model of automobile and asked each
the service manager of appliance universe has recorded the times for a simple random sample of 50 refrigerator service
researchers have estimated that office workers in germany receive an average of 150 fax messages per day assuming this
according to nielsennetratings the average visitor to the american greetings website spends 1185 minutes at the
under what conditions is it appropriate to use the normal approximation to the binomial distribution in constructing
a pharmaceutical company found that 46 of 1000 us adults surveyed knew neither their blood pressure nor their
an airline has surveyed a simple random sample of air travelers to find out whether they would be interested in paying
in response to media inquiries and concerns expressed by groups opposed to violence the president of a university with
in examining a simple random sample of 100 sales invoices from several thousand such invoices for the previous year a
a study by the society of human resource management found 23 of us business executives surveyed believe that an
according to nielsen media research viewership data the top television broadcast of all time was the last episode of
in a major industry where well over 100000 manufacturing employees are represented by a single union a simple random
1 in using the t distribution table what value of t would correspond to an upper-tail area of 0025 for 19 degrees of
why are the t values listed in the df infinity row of the t distribution table identical to the z values that
when the t distribution is used in constructing a confidence interval based on a sample size of less than 30 what
in given exercise if the sample size had been n 5 instead of n 30 what assumption would have to be made about the
a machine that stuffs a cheese-filled snack product can be adjusted for the amount of cheese injected into each unit a
an assembly process includes a torque wrench device that automatically tightens compressor housing bolts the device has
in testing the heat resistance of electrical components safety engineers for an appliance manufacturer routinely