View Answered Questions
| No. & Date Asked | Question |
# 551 :: 12/12/08
 |
Philadelphia is conducting a study on the characteristics of tourists who drive to Eagles football games. Previous studies indicate that approximately. . .
Sample Size,
Confidence Intervals,
Proportion |
# 521 :: 11/24/08
|
The width of a confidence estimate for a proportion will be:
a. Narrower for a 99% confidence interval than for a 95% confidence interval.
b. Wider . . .
Confidence Level,
Confidence Intervals,
Proportion |
# 511 :: 11/13/08
|
A machine produces 3 inch nails. A sample of 100 nails is selected, and it is found that 25 are shorter than 3 inches. Find the 95% confidence interv. . .
Proportion,
Confidence Intervals,
One-Tailed Area |
# 507 :: 11/12/08
|
In a survey of 500, 60% responded positively to an value question.
Calculate a confidence level at 95% to get an interval estimate for proportion?. . .
Sample Size,
Confidence Intervals,
Proportion |
# 357 :: 8/25/08
|
Biting an unpopped kernel of popcorn hurts! As an experiment, a self-confessed connoisseur of cheap popcorn carefully counted 773 kernels and put them. . .
Confidence Intervals,
Normal Approximation to Binomial ,
Proportion |
# 12 :: 10/23/07
|
Can a z score be calculated by input of a proportion only?. . .
Proportion,
Z-Score |
