Tuesday

September 30, 2014

September 30, 2014

Posted by **carly** on Wednesday, November 21, 2012 at 2:52pm.

a)50% of the respondents scored between 180 and 210

b)68% of the responents scored above 120

c)50% of the respondents scored between 120 and 210

d) 96% of the respondents scored between 90 and 210

- statistics -
**PsyDAG**, Thursday, November 22, 2012 at 12:54pmZ = (score-mean)/SD

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion related to the various Z scores.

**Answer this Question**

**Related Questions**

Statistics - If student A scored 42 on a test of reading and the test had a ...

Statistics - A statistics practitioner determined that the mean and standard ...

statistics - the correlation between two tests given to 100 students in the ...

psy230 - A business researcher has to decide which of three employees should be ...

Statistics- Math - One student scored 54 on a math test for which the mean score...

Math - On a standardized test, Phyllis scored 84, exactly one standard deviation...

statistics - What would a person's numerical score be if someone scored two ...

statistics - If someone scored two Standard Deviations above the Mean on a ...

statistics - if a test has a mean of 75, with a standard deviation of 11, what...

Statistics - A district mathematics test for all third graders had a normal ...