Greece has faced a severe economic crisis since the end of 2009. A Gallup poll surveyed 1,000 randomly sampled Greeks in 2011 and found that 25% of them said they would rate their lives poorly enough to be considered suffering. d) Without doing any calculations, describe what would happen to the confidence interval if we decided to use a higher confidence level. Assume everything else remains constant. A. The confidence interval would be narrower B. The confidence interval would remain the same C. The confidence interval would be wider e) Without doing any calculations, describe what would happen to the confidence interval if we used a larger sample. Assume everything else remains constant. A. The confidence interval would be wider B. The confidence interval would remain the same C. The confidence interval would be narrower
Greece has faced a severe economic crisis since the end of 2009. A Gallup poll surveyed 1,000 randomly sampled Greeks in 2011 and found that 25% of them said they would rate their lives poorly enough to be considered suffering.
d) Without doing any calculations, describe what would happen to the confidence interval if we decided to use a higher confidence level. Assume everything else remains constant.
A. The confidence interval would be narrower
B. The confidence interval would remain the same
C. The confidence interval would be wider
e) Without doing any calculations, describe what would happen to the confidence interval if we used a larger sample. Assume everything else remains constant.
A. The confidence interval would be wider
B. The confidence interval would remain the same
C. The confidence interval would be narrower
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