D Question 14 1 pts We have calculated a 95% confidence interval and would like our next confidence interval to have a smaller margin of error without losing any confidence. In order to do this, we can 1. change the value to a smaller number. II. take a larger sample. III. take a smaller sample. oll only ol only o I and III o I and II o lll only D Question 15 1 pts Which of the following is not an assumption and/or condition required for constructing a confidence interval for the proportion? o Randomization condition o 10% condition o None of these o Success/Failure condition o Linearity condition Question 16 1 pts Which is true about a 90% confidence interval based on a given sample? 1. The interval contains 90% of the population. IL Results from 90% of all samples will lie in this interval. Il The interval is smaller than a 95% confidence interval would be. ol only o lll only o I and III oll only O None Question 17 1 pts The main ideas of sampling do not include o Randomization O All ideas of sampling should be included o Sample size matters o The fraction of the larger population determines the precision of the resulting statistics o Examine a part of the whole