The U. S. Census bureau compiles census data on educational attainment of Americans. From the document, Current Population Reports the 2000 distribution of education attainment for U. S adults were obtained for 25 years old and older. The following is the distribution: Highest level Not HS graduate HS graduate Some college Associate’s degree Bachelor’s degree Advanced degree Percentage 15.8 33.2 17.6 7.8 17.0 8.6A random sample of 500 adults (25 years or older) taken this year gave the following frequency distribution: Highest level Not HS graduate HS graduate Some college Associate’s degree Bachelor’s degree Advanced degree Frequency 84 160 88 32 87 49 Decide at 5% level whether this year’s distribution of education attainment differs from the 2000 distribution.

see below

step-by-step explanation:

7.   there are 10 data points in the set.   the middle point is between 5 and 6.   the middle point in the top half is 8   and the middle point in the bottom half is 3. to find the iqr , take point 8 and subtract point 3

mid term   point 8 = 100   point 3 = 88

iqr = 100-88 = 12

final   point 8 = 93   point 3 = 78

iqr = 93 - 78 = 15

the final has the greatest iqr

6.   b - there is a high data value that causes the data set to be asymmetrical for the males: the data for males are high and asymmetrical .   there is an outlier for the males that skews the data

5.   the   iqr is a better measure of spread for the movies and basketball games.   since the basketball game has an outlier, we do not want to use standard deviation for measurement.  

3.   the exam median is much higher than the class median.   the median line is farther to the right on the exams

2.   there is no way to tell what the means are from the box and whisker plots.  

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign

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step-by-step explanation:

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step-by-step explanation: