SOLUTION: 2 independent samples taken from two normal distributions with equal variances
Sample 1; Mean 12, Standard deviation 5
Sample 2; Mean 15; Standard deviation 4
Make a 95% confi
Algebra ->
Probability-and-statistics
-> SOLUTION: 2 independent samples taken from two normal distributions with equal variances
Sample 1; Mean 12, Standard deviation 5
Sample 2; Mean 15; Standard deviation 4
Make a 95% confi
Log On
Question 1042157: 2 independent samples taken from two normal distributions with equal variances
Sample 1; Mean 12, Standard deviation 5
Sample 2; Mean 15; Standard deviation 4
Make a 95% confidence interval of the difference of two means.
To me, we cannot solve this without the sample sizes so I would like to know what you think... Thank you! Answer by jim_thompson5910(35256) (Show Source):
You can put this solution on YOUR website! You are correct. You need to know the two sample sizes and in order to be able to compute the confidence interval.
(