Sunday

February 1, 2015

February 1, 2015

Posted by **michelle** on Monday, September 26, 2011 at 10:30am.

- statistics -
**PsyDAG**, Monday, September 26, 2011 at 11:05amWhat is your question?

- statistics -
**Kimberly Rubino**, Tuesday, September 27, 2011 at 11:26amYes, it would be unusal for the mean of a sample of 3 to be 115 or more because there is only a 4.18% chance for this to happen.

P(X >= 115)

= P(X >= (115 - 100) / sqrt(15^2 / 3))

= P(X >= 1.732050808)

= 0.0418

**Answer this Question**

**Related Questions**

Statistics - Assume that a population is normally distributed with a mean of 100...

statistics - Assume that a population is normally distributed with a mean of 100...

statistics - Assume that a population is normally distributed with a mean of 100...

statistics - Assume that a population is normally distributed with a mean of 100...

statistics - Assume that a population is normally distributed with a mean of 100...

statistics - Assume that a population is normally distributed with a mean of 100...

Statistics - Assume that a population is normally distributed with a mean of 100...

Elementray Statistics - Assume that a population is normally distributed with a ...

statistics - Assume that a population is normally distributed with a mean of 100...

Statistics - An admissions director wants to estimate the mean age of all ...