4,704
9,393
6,670
11,512
Not enough information
5.53%
1%
0.5%
11.06%
4.86%
We can say there is a 7.5% chance of seeing the new programs having no effect on retention in the results we observed from natural sampling variation. There is no evidence the new programs are more effective, but we cannot conclude the new programs have no effect on retention.
There's only a 7.5% chance of seeing the new programs having no effect on retention in the results we observed from natural sampling variation. We conclude the new programs are more effective.
We can say there is a 7.5% chance of seeing the new programs having an effect on retention in the results we observed from natural sampling variation. We conclude the new programs are more effective.
There is a 7.5% chance of the new programs having no effect on retention.
There is a 92.5% chance of the new programs having no effect on retention.
II only
III only
I and III
I only
I and II
Ho: p = 0.62 Ha: p ≠ 0.62
Ho: p ≠ 0.62 Ha: p = 0.62
Ho: p = 0.62 Ha: p < 0.62
Ho: p < 0.62 Ha: p > 0.62
Ho: p < 0.62 Ha: p = 0.62
The university concludes that retention is on the rise, but in fact the new programs do not help retention.
The product of the university's sample size and sample proportion was less than 10.
The university sampled all students at the university.
The university concludes that retention is on the rise since the retention rate can only increase.
The university stops all new programs, but in fact retention is on the rise and the programs help.
They fail to reject Ho, making a Type II error.
They fail to reject Ho , making a Type I error.
They reject Ho , making a Type I error.
They correctly fail to reject Ho.
They correctly reject Ho.
The mayor uses a significance level of 0.05 and n = 1,000 voters.
The mayor uses a significance level of 0.01 and n = 250 voters.
The mayor uses a significance level of 0.01 and n = 500 voters.
The mayor uses a significance level of 0.01 and n = 1,000 voters.
The mayor uses a significance level of 0.05 and n = 500 voters.
(40.5%, 50.8%)
(37.6%, 53.7%)
(38.3%, 52.9%)
(25.3%, 66.0%)
(39.5%, 51.8%)