Instructions: Please write neatly. Be sure to use correct notation! 1. I calcula
ID: 3340885 • Letter: I
Question
Instructions: Please write neatly. Be sure to use correct notation! 1. I calculated a 95% confidence interval, using the American Wedding Survey, for the average amount of money spent on an engagement ring. The confidence interval is $3,222 < µ < $4,085. Which of the following statements are correct? Check all that apply, there may be more than one. _____ 95% of all surveys would have a confidence interval between $3,222 and $4,085. _____ There is a 95% probability that the next engagement ring will cost between $3,222 and $4,085. _____ If we did 100 confidence intervals about 95 of them would capture the true average cost. _____ There is a 95% probability that the next confidence interval will capture the true average cost. _____ It is completely impossible to ever actually understand what confidence means. _____ 95% of all engagement rings will cost between $3,222 and $4,085. _____ We are 95% confident the average cost of an engagement ring is between $3,222 and $4,085. _____ A new confidence interval has a 95% probability of being $3,222 to $4,085.
Explanation / Answer
correct statements for 95% confidence interval :
1)If we did 100 confidence intervals about 95 of them would capture the true average cost
2)We are 95% confident the average cost of an engagement ring is between $3,222 and $4,085.
please revert,