Mathematics, 07.11.2019 01:31, nightmarewade03
The world health organization is planning a study of the average weight gain of europeans in the last 5 years. scientists from the who plan on taking a srs of 100 europeans and calculating a 95% confidence interval of the average weight gain of all europeans. the who changed their minds and now plans on calculating a 90% confidence interval from the sample they will select. explain to the who the impact of changing their confidence level from 95% to 90%. select all that apply.- their confidence interval would be less likely to capture the sample mean.
- they would decrease the margin of error of their confidence interval if they calculated a 90% rather than a 95% confidence interval.
- the probability of selecting a sample which doesn't capture the true value of μ would be 10% rather than 5% if they decide to calculate a 90% confidence interval rather than a 95% confidence interval from the sample they will select
- exactly two of the above are correct.
- the first 3 statements are correct.
Answers: 3
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