Reference no: EM132849347

The following data are the response times in seconds for n5.3 3.7 5.5 3.8 3.54.1 4.0 4.5 4.6 4.1 =25 first graders to arrange three objects by size.

3.2 2.7 2.8 4.6 4.9

3.6 4.0 5.0 5.2 4.0

4.5 3.4 4.4 3.7 5.4

(a) Find the mean and the standard deviation for these 25 response times. (Round your standard deviation to three decimal places.)

mean ____ sec (I try 4.2)

standard deviation _____ sec (I try 0.762)

(b) Order the data from smallest to largest. (Enter your answers as a comma-separated list.)

(c) Find the z-scores for the smallest and largest response times. (Round your answers to two decimal places.)

smalless____ (I try -1.84)

largest _____(I try 1.71)