Considering the margin of error, it is found that the 95% confidence interval for the percentage of adults who say vaccines should be required is (64.9%, 71.1%).
<h3>What is a confidence interval?</h3>
It is given by the sample statistic plus/minus the margin of error.
In this problem, 68% of adults say such vaccines should be required, with a margin of error of 3.1%, hence:
68% - 3.1% = 64.9%.
68% + 3.1% = 71.1%.
The 95% confidence interval for the percentage of adults who say vaccines should be required is (64.9%, 71.1%).
More can be learned about confidence intervals at brainly.com/question/25890103
Answer:
25 Days
Step-by-step explanation:
2.5 x 25= 62.5 and you can't go above that or it's over 64.
Answer:
0.04
Step-by-step explanation:
Well, we know that distance equals speed x time. If the giraffe can run 46.93 feet per second, then by using our equations, we can deduce that the giraffe can run 84.474 feet within 1.8 seconds.