Assume

Assume you are interested in determining if reaction times to identify letters presented on a computer screen differ according to time of day. You present the subjects in your study with a letter and

Assume you are interested in determining if reaction times to identify letters presented on a computer screen differ according to time of day. You present the subjects in your study with a letter and measure how long it takes them to push a key on a keyboard in front of them (i.e. you measure their reaction time in milliseconds). Below is a set of reaction time data collected from 25 students in the late afternoon.

1) Construct a grouped frequency distribution table using the steps outlined in class. For this assignment use 6 interval classes to calculate your interval width. NOTE: this does not mean your final table has to have 6 categories (9 points).

2) In your table include columns expressing the relative frequencies of scores a proportion and percentages (9 points)

3) If you had to represent the frequency distribution graphically what type of graph would you choose? Why? (2 points)

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