Friday

March 27, 2015

March 27, 2015

Posted by **Jennifer** on Monday, January 21, 2013 at 10:30pm.

a. that for a randomly selected test, the time taken was more than 1 hour.

b. that the mean number of minutes taken by a random sample of 24 tests is less than 50 minutes

- probability -
**PsyDAG**, Tuesday, January 22, 2013 at 4:40pma. Z = (score-mean)/SD

b. Z = (score-mean)/SEm

SEm = SD/√n

For each, find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z score.

**Answer this Question**

**Related Questions**

statistics - The times taken to complete a statistics test by all students are ...

statistics - The times taken to complete a statistics test by all students are ...

Stats - Suppose the time it takes for a purchasing agent to complete an online ...

statistics - Let x denote the time taken to run a road race. Suppose x is ...

statisticss - The time taken by a man to deliver milk is normally distributed ...

math - the courier service company has found that their time of parcels to ...

probability - normally distributed with a mean of 40 minutes and a standard ...

statistics - Suppose the amount of time it takes for statistics students to ...

math - The time required to finish a test in normally distributed with a mean of...

statistics - Times for a surgical procedure are normally distributed. Method A ...