Sunday

September 21, 2014

September 21, 2014

Posted by **Rhea** on Tuesday, April 29, 2014 at 2:31am.

a. If you wanted to select only student at or above the 90th percentile, what verbal GRE score would you use as a cutoff score?

b. What verbal GRE score corresponds to a percentile rank of 15%? What verbal GRE score corresponds to a percentile rank of 55%?

c. What's the percentile rank of a GRE score of 628? What's the percentile rank of a GRE score of 350?

d. If you randomly selected 1,500 students who had taken the verbal GRE, how many would you expect to score lower than 250? How many would you expect to score higher than 750?

- Statistic in Social Science -
**PsyDAG**, Tuesday, April 29, 2014 at 12:03pmZ = (score-mean)/SD

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability(.90, .15, etc.) and related Z score. Insert into above equation and solve for score.

For last two (c & d) solve for Z and use the same table.

- Statistic in Social Science -
**Anonymous**, Wednesday, June 18, 2014 at 12:04pm4. The verbal part of the Graduate Record Exam (GRE) has a ƒÝ of 500 and ƒã = 100. Use the normal distribution to answer the following questions:

a. If you wanted to select only students at or above the 90th percentile, what verbal GRE score would you use as a cutoff score?

b. What verbal GRE score corresponds to a percentile rank of 15%? What verbal GRE score corresponds to a percentile rank of 55%?

c. What¡¦s the percentile rank of a GRE score of 628? What¡¦s the percentile rank of a GRE score of 350?

d. If you randomly selected 1,500 students who had taken the verbal GRE, how many would you expect to score lower than 250? How many would you expect to score higher than 750?

**Answer this Question**

**Related Questions**

statistic - The Graduate Record Exam (GRE) has a combined verbal and ...

Math (Statistic) - Considered the sampling distribution of a sample mean ...

MATH - Which of the following normal distributions has the smallest spread? A. A...

statistic of behavioral science - for each of the following, identify the exam ...

Statistics - A study was conducted to investigate relationships between ...

Statistics (Math) - A government report looked at the amount borrowed for ...

Psychological Statistics - Assume that GRE scores approximate a normal curve and...

stats - SAT math scores approx. follow a normal distribution, with mean 500 and ...

statistics - It is known that the population mean for the Quantitative section ...

statistics - A normal distribution has a standard deviation equal to 23. What is...