6) Which of the following is true about the relationship between the confidence level and the margin of error? a. As the confidence level increases, the margin of error increases b. As the confidendeslevel increases, the margin of error decreases C. There is no relationship between the confidence level and the margin of error d. None of these answers is correct

In 2001, the polls found that 81% of American adults believed that there was a conspiracy in the death of President Kennedy. Assume a recent poll asked 1500 American adults if they believe there was a conspiracy in the assassination and it found that 1180 believe there was a conspiracy.  Calculate a 91% confidence interval for the percentage of all Americans who believe in this conspiracy.

Problem 3: Please answer parts a, b, c, and d

Suppose you calculate a 95% and 90% confidence interval for the true proportion of college students with student loan using the same data set. Which of the following must be true? a) The 95% confidence interval is wider than the 90% confidence interval. b) The 95% confidence interval is the same length as the 90% confidence interval. c) The 95% confidence interval is narrower than the 90% confidence interval. d) There is no way to tell from the given information.

What happens when we increase a confidence level C% from, say 90% to 99%? A) The range of the interval increases, because the margin of error increases. B) The range of the interval increases, because the margin of error decreases. C) The range of the interval decreases, because the margin of error decreases. D) The range of the interval decreases, because the margin of error increases.

This data comes from the hours of sleep among nightshift and dayshift workers. How would i put into words the meaning of the confidence interval in relation to the topic

We wish to estimate what percent of adult residents in a certain county are parents. Out of 600 adult residents sampled, 150 had kids. Based on this, construct a 90% confidence interval for the proportion p of adult residents who are parents in this county. Express your answer in tri-inequality form. Give your answers as decimals, to three places. p Express the same answer using the point estimate and margin of error. Give your answers as decimals, to three places. K P= Submit Question

As the confidence level goes up, the reliability goes _____ and the precision goes _____. Options: up, down.

How would a 90​% interval compare with the others in​ width?   A. A 90​% interval would be narrower than the 95​% confidence interval but wider than the 80​% confidence because intervals get narrower with increasing confidence level.   B. A 90​% interval would be wider than the 95​% confidence interval but narrower than the 80​% confidence because intervals get narrower with increasing confidence level   C. A 90​% interval would be wider than the 95​% confidence interval but narrower than the 80​% confidence because intervals get wider with increasing confidence level.   D. A 90​% interval would be narrower than the 95​% confidence interval but wider than the 80​% confidence because intervals get wider with increasing confidence level.

Write down the confidence interval formula for image 1  . Is the correct answer  image 2?