Question

4. Use the following charts to compare the central tendency and variability between men and women for the variable AGEKDBRN and answer the following questions. Case Processing Summary Cases Missing Valid Total sex RESPONDENTS SEX 1 MALE 2 FEMALE Percent 601 | 67.5% 869| 75.4% Percent 891 | 100.0% 284 | 24.6% | 1153 | 100.0% Percent 2901 32.5% WHEN 1ST CHILD BORN Descriptives StatisticStd. Error 269 agekdbrn RS AGE WHEN 1ST CHILD BORN 25.54 25.02 Upper Bound 26.07 25.13 25.00 43.605 6.603 12 1 MALE Mean 5% Confidence Interval for Mearn Lower Bound 5% Trimmed Mean Median Variance Std. Deviation Minimum Maximum Range Inte rquartile Range Skewness Kurtosis 43 9 963 1.364 22.79 Lower Bound! 22.44 Upper Bound 23.14 22.46 22.00 100 199 180 2 FEMALE Mean 95% Confidence Interval for Mearn 5% Trimmed Mean Median

Answer 1

Answer to the question is as follows. Please write back in case of doubts:

a. Mean age of 1st child was born for males - 25.54

b. Standard deviation for males - sqrt(Variance) = sqrt(43.605) = 6.6034

c. Mean age of 1st child was born for females - 22.79

d.Standard deviation for females = sqrt(Variance) = sqrt(28.147) = 5.305

e. The average age of 1st child born to males is generally higher by almost 2.75 years compared to females.

Since the mean and median are almost same for the groups, the central tendancy for both groups can be safely assumed to be the Mean. Also kurtosis within a range of -1,1 means a normal no skewness distribution

Even the variability of the age is more females compared to that of male. It is 6.6034 for males vs. 5.305 for females