Open the Trust data-set in SPSS
a. Compute the descriptive statistics of
the variable q4kilos on the whole sample (N = 500) b. Suppose you need to
extract a simple random sample of 50 elements, what is the estimated relative
accuracy at a 95% confidence level? (HINT: t_/2 = t0.025 = 1.68) c. If the
target accuracy is 15%, what is the sample size?
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