3.  Use the following values to answer the items below:  Many health professionals suggest that children younger than the age of three should take at least 2 naps per day The data below is from a sample of mothers with children younger than age three: 5, 3, 2, 5, 1, 3, 2, 5, 3, 2, 3, 3, 4, 4, 3, 3, 2, 5, 3, 3, 3, 2, 3, 1, 4, 3, 3, 2, 1, 4, 4, 3, 3, 3, 2, 1, 3, 2, 1, 2             a.  Create a simple frequency distribution table.  Include columns for frequency, proportion, cumulative frequency, and cumulative percent.              b.  What is the N?             c.  What is the mean?             d.  What is the mode?             e.  What is the percentile rank of X =2.5?  Interpret this value in a sentence.              f.  What is the P90?             g.  Is this graph symmetric or skewed (check the overall pattern)?

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3.  Use the following values to answer the items below: 

Many health professionals suggest that children younger than the age of three should take at least 2 naps per day The data below is from a sample of mothers with children younger than age three:

5, 3, 2, 5, 1, 3, 2, 5, 3, 2, 3, 3, 4, 4, 3, 3, 2, 5, 3, 3,

3, 2, 3, 1, 4, 3, 3, 2, 1, 4, 4, 3, 3, 3, 2, 1, 3, 2, 1, 2

            a.  Create a simple frequency distribution table.  Include columns for frequency, proportion, cumulative frequency, and cumulative percent. 

            b.  What is the N?

            c.  What is the mean?

            d.  What is the mode?

            e.  What is the percentile rank of X =2.5?  Interpret this value in a sentence. 

            f.  What is the P90?

            g.  Is this graph symmetric or skewed (check the overall pattern)?

 

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