Question Assignment description
Life rating in Greece. Greece has confronted a extreme financial disaster for the reason that finish of 2009.
A Gallup ballot surveyed 1,000 randomly sampled Greeks in 2011 and located that 25% of them mentioned
they’d charge their lives poorly sufficient to be thought-about “struggling”.42 (a) Describe the inhabitants parameter of curiosity. What’s the worth of the purpose estimate of this
parameter? (b) Examine if the circumstances required for developing a confidence interval primarily based on these information are
met. (c) Assemble a 95% confidence interval for the proportion of Greeks who’re “struggling”. (d) With out doing any calculations, describe what would occur to the boldness interval if we
determined to make use of a better confidence stage.
(e) With out doing any calculations, describe what would occur to the boldness interval if we
used a bigger pattern.
