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.

The sum of two numbers is 12 and their difference is 18 what are the two numbers

{0,1,2,3,4,5,6,20,21,22,23,24,25} the distribution is considered to be: skewed the right, skewed the left, not skewed?

It appears that people who are mildly obese are less active than leaner people. one study looked at the average number of minutes per day that people spend standing or walking. among mildly obese people, the mean number of minutes of daily activity (standing or walking) is approximately normally distributed with mean 376 minutes and standard deviation 64 minutes. the mean number of minutes of daily activity for lean people is approximately normally distributed with mean 528 minutes and standard deviation 107 minutes. a researcher records the minutes of activity for an srs of 7 mildly obese people and an srs of 7 lean people. use z-scores rounded to two decimal places to answer the following: what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 mildly obese people exceeds 420 minutes? what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 lean people exceeds 420 minutes?