After a military campaign a random sample of 59 soldiers

Reference no: EM13602433

After a military campaign, a random sample of 59 soldiers (none of whom know each other) was examined and the number of soldiers who suffered from lifetime post-traumatic stress disorder (PTSD) was determined. Answer the following questions.

1. Explain why this is a binomial experiment.

2. Suppose that half of the former soldiers suffer from PTSD. What is the mean of X, the number of people suffering from PTSD in a sample of 59 former soldiers?

3. Interpret the mean.

4. Compute the standard deviation of X.

5. Would it be unusual to find 32 individuals suffering from PTSD in a group of 59 former soldiers? Explain your response.

Reference no: EM13602433

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