SPSS Software Needed – Data Management & Epidemiologic Analysis
Consider the following data set Bears, representing measurements on anesthetized wild bears. Using SPSS statistical software, perform the following
Since we have sex as one of the variables, split the data set by the variable sex and draw histograms for males and females for the variable age. Roughly speaking what is the shape of each histogram?
Draw a comparison box plot for the variable Weight for both males and females. Which of males or females have higher variability?
Calculate the descriptive statistics for males and females for the variables head length and Chest.
Do you think that the Weight of males and females have the same shape? Illustrate using graphs.
Do you think that the age of males or females follow a normal distribution? Draw a normal probability plot and comment on it.
Test the normality of the head length of males and females.
Calculate a 99% confidence interval estimate for the mean weight for males and females bear.
20190924040732homework_2_spss (1)
Solution Preview
Data Management & Epidemiologic Analysis
PHC 6055
Question One
The males histogram takes the shape of a normal distribution curve while the females histogram takes the shape of positively skewed distribution curve. In particular, values for the males histogram are longest in the middle and gradually reduce in length as one moves either to the left or to the right. The bars for the females histogram are longest on the left and gradually reduce in length towards the right.
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