1 ( Algorithmic ) The Centers for Disease Control and Prevention Office on Smoking and Health ( OSH ) is the lead federal agency responsible for comprehensive tobacco prevention and control . OSH was established in 1965 to reduce the death and disease caused by tobacco use and exposure to secondhand smoke . One of the many responsibilities of the OSH is to collect data on tobacco use . The following data show the percentage of U.S. adults who were users of tobacco for a recent 11 - year period ( http://www.cdc.gov/tobacco/data_statistics/tables/trends/cig_smoking/index.htm ). Year Percentage of Adults Who Smoke

1 22.7

2 21.2

3 21.1

4 20.5

5 20.5

6 20.1

7 19.4

8 20.7

9 20.7

10 19.3

11 18.6

b. Use simple linear regression analysis to find the parameters for the line that minimizes

MSE for this time series. Do not round your interim computations and round your final

answers to three decimal places. For subtractive or negative numbers use a minus sign.

(Example: -300

y-intercept,

b

0

=

Slope,

b

1

=

MSE =

Use your model from part (b) to estimate the number of years that must pass after

these data have been collected before OSH will achieve this goal. Round your answer to the nearest whole number