CSN - ECON 261 - QUIZ #7 - PRINCIPLES OF STATISTICS I ECON...

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PRINCIPLES OF STATISTICS I ECON 261 QUIZ #7 NAME: True(T)/False(F) ) ) ( - ~ An inte,val estimate is a single valoe osed to estimate a popolation pa,amete<. ~01\'rt ElslJmx,\Cj ~ -- ~ - 0 We can expect a difference between a sample statistic and the corresponding population parameter. This difference is called the sampling error. A \n-tev'J oJ I r "l :g_, is a span of values used to estimate a population parameter. a s,nq,{t> Vci\w _ To determine the value of the standard deviation of the sampling distribution of sample means, the standard deviation is divided by the sample size. ~ ¥e- The Student t distribution has a greater spread than the z distribution. As a result, the critical values oft for + _ a given level of significance are larger than the corresponding z critical values. s ( q ~ :t- ~ 9'((/Vf ~(e Jtef, ) ~ aster, developed the t test for the Guinness Brewery in Ireland and published it in 1908 using the pen name "Student." ~ The t dist,ibotion is positively skewed.
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