The article \"Americans Drowsy on the Job and the Road\" summarized data from th

Question

The article "Americans Drowsy on the Job and the Road" summarized data from the 2001 Sleep in America poll. Each individual in a sample of 1004 adults was asked questions about his or her sleep habits. The article states that "40 percent of those surveyed say they get sleepy on the lob and their work suffers at least a few days each month, while 22 percent said the problems occur a few days each week. Seven percent say sleepiness on the job is a daily occurrence and for the rest sleepiness was not a problem." (a) Summarize the given information by constructing a frequency distribution. (b) Match the bars on the chart below with the appropriate category from the table.

Explanation / Answer

P(few days each month) = 0.4

P(few days each week) = 0.22

P(daily occurence) = 0.07

P(not at all) = 1 - (0.4 + 0.22 + 0.07) = 0.31

a)

Sleepy at work                 Relative Frequency

not at all                                   0.31

few days each month               0.40

few days each week                 0.22

daily occurence                        0.07

b) Bar B) - few days each month        

Bar-A) not at all                    

Bar-C) few days each week  

Bar-D) daily occurence     

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