Friday

December 19, 2014

December 19, 2014

Posted by **lauren** on Sunday, February 17, 2008 at 6:56pm.

A)are the reported means and standard deviations, parameters or statistics? explain

b)a student is chosen at random. His homework scores are higher than 65% of the class. find his homework score.

- statistics -
**Damon**, Sunday, February 17, 2008 at 7:35pmA) sorry, never took the subject so do not know the words, am physics major.

B)

homework mean = 81.7

homework s = 22.28

on a normal distribution table, 65% of class is below mean + .4 sigma = 81.7+8.912 = 90.6

so his score is above 90.6

**Answer this Question**

**Related Questions**

Stastics - When we convert x-value to z- score and use Standard Normal ...

math - Miss C gives a test to the 10 students in her first-period algebra class...

stats - Relatively speaking, which statistics exam did you do better on? On ...

Statistics - hi i need help calculating the standard error using the central ...

statistics - what are the mean and standard deviation of a sampling distribution...

statistics - If a distribution of IQ test scores has a mean of 100 and a ...

Statistics - 1) A Motor Company has purchased steel parts from a supplier for ...

statistics - A student was asked to compute the mean and standard deviation for ...

probability and statistics - Suppose every student in your class got a score of ...

Statistics - The distribution of IQ scores is a nonstandard normal distribution ...