Project Statistics Example | Topics and Well Written Essays - 750 words - 1

Statistics Project Example I am satisfied that the sites I used are valid because it is the Bureau of Labor Statistics (BLS) website. a. Boxplot: Figure 2 shows the Side-by-side Boxplot of 2003 and 2013 unemployment rates data. There appears that the state unemployment rates for the year 2003 were higher as compared to the year 2013. b. Scatterplot: Figure 3 shows the Scatterplot of 2003 unemployment rates (predictor variable) and 2013 unemployment rates (response variable). There appears a positive relationship between 2003 and 2013 state unemployment rates. The average state unemployment rate for the year 2003 was 6.31% and varies from the mean by about 1.47%. About half of the state’s unemployment rates were below 6.4%. About one-quarter of the state’s unemployment rates were below 5.4% and about one quarter of the state’s unemployment rates were above 7.4%. The minimum and maximum unemployment rates were 2.7% and 9.3% respectively. The distribution of state unemployment rates for the year 2003 is approximately normal. The average state unemployment rate for the year 2013 was 5.20% and varies from the mean by about 1.02%. About half of the state’s unemployment rates were below 5.0%. About one-quarter of the state’s unemployment rates were below 4.4% and about one quarter of the state’s unemployment rates were above 5.8%. The minimum and maximum unemployment rates were 3.2% and 7.7% respectively. The distribution of state unemployment rates for the year 2013 is approximately normal. There is no outlier for the 2013 state unemployment rates, as all data values lie in-between lower fence (2.3%) and upper fence (9.8 %). The presence of outliers in a data set tells that they are unusual values and can have an effect on the overall mean and standard deviation. The visual analysis of scatterplot suggests a linear model for the data. Below regression analysis shows the Minitab output for the linear regression analysis taking 2003