Using SPSS: 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% confidence interval for the variable. Calculate a 90% confidence interval.

Post your results, the mean of Age to verify the dataset you used, and an 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. Also, use your research to support your findings.

Frankfort-Nachmias & Leon-Guerrero (2018) shared that in order to find the confidence bond we should calculate the mean of the values in a data set which might not necessarily represent the true mean across the entire population of those who are being tested/studied. we can calculate a range of values within w hich. The mean across the entire population will fall. and this is what is referred to as the confidence interva