Statestic Statistics Project Example | Topics and Well Written Essays - 500 words

Statestic - Statistics Project Example Further, it has been observed that on average life expectancy at birth for female is greater as compared to male. This paper will analyze whether there is a difference in the life expectancy at birth for male and female population. The data for life expectancy at birth was taken from US Census Bureau. The main benefit that data shows is that from period 1970 to 2005 female life expectancy at birth is greater as compared to male life expectancy at birth. In addition, the data is chosen so that it can be seen actually that living and health conditions are improving day by day and so life expectancy at birth is improving every year.   Figure 1 shows the comparison of US male and female life expectancy at birth for the period 1970 to 2005. It can be seen from figure 1 that for the whole period of 1970 to 2005, female life expectancy at birth was greater than male life expectancy at birth by nearly 7 years. Therefore, it appears that there is a difference in male and female life expectancy at birth. The average male and female life expectancy at birth for the period 1970 to 2005 was about 71.41 years (SD = 2.33), and 78.2 years (SD = 1.53), respectively. Since, the value of test statistic 14.52 falls in right-tail rejection region (greater than critical value of 1.96), thus decision is to reject H0. Therefore, there is a difference in life expectancy at birth for male and female populations. This is also confirmed by the p-value (