The unemployment rate in the state of Alaska by month is given in the table belo

Question

The unemployment rate in the state of Alaska by month is given in the table below: a. What is the arithmetic mean of the Alaska unemployment rates? (Round your answer to 2 decimal places.) Arithmetic mean 89.83 b. Find the median and the mode for the unemployment rates. (Round your answers to 2 decimal places.) Median Mode c-1. Compute the arithmetic mean and median for just the winter (Dec-Mar) months. (Round your answers to 2 decimal places.) Mean Median c-2. Is it much different? The winter unemployment rates are higher. The winter unemployment rates are lower. The winter unemployment rates are equal.

Explanation / Answer

a)
arithmetic mean = (8 + 9 + 9 + 9 + 6.7 + 8.4 + 7.3 + 7.4 + 8.7 + 8.9 + 6.8 + 7.5) / 12 = 8.06

b) median
6.7 , 6.8 , 7.3 , 7.4 , 7.5 , 8 ,8.4 , 8.7 , 8.9 ,9 ,9 ,9

median = (8 + 8.4) /2 = 8.2

mode = 9

c1)
median
7.5 , 8 , 9 , 9

median = ( 8 + 9 ) /2 = 8.5

mode = 9

c2) The winter unemployment rates are higher

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