March 28, 2017

Post a New Question

Posted by on .

For this class, the first quiz had a mean of 90.4% with a standard deviation od 16.6%. The homework scores have a mean of 81.7% with a standard deviation of 22.28%. Suppose you scored 90% on quiz one and have a homework total of 84%.

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 - ,

    A) sorry, never took the subject so do not know the words, am physics major.

    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

First Name:
School Subject:

Related Questions

More Related Questions

Post a New Question