Using the SPSS software. Take a random sample of 100. Calculate the 95% confidence interval for the variable. Calculate a 90% confidence interval. Take another random sample of 400. Calculate the 95%...

1. Take a random sample of 100.


2. Calculate the 95% confidence interval for the variable.


3. Calculate a 90% confidence interval.


4. Take another random sample of 400.


5. Calculate the 95% confidence interval for the variable.


6. Calculate a 90% confidence interval.

Post your results, the mean of Age to verify the dataset you used, andan explanation of how different levels of confidence and sample size affect the width of the confidence interval. Next, consider the statement, “Confidence intervals are underutilized” and explain what the implications might be of using or not using confidence intervals. Provide examples based on the results of your data.Add references.

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