Please write 1 page for each part and include separate reference pages for each

Please write 1 page for each part and include separate reference pages for each part.

Part 1 The following has been calculated and the data is attached.

Take a random sample of 100.

Calculate the 95% confidence interval for the variable. (age is the variable).

Calculate a 90% confidence interval.

Take another random sample of 400.

Calculate the 95% confidence interval for the variable. Age is the variable

Calculate a 90% confidence interval.

From the tables in the attachments , analyze the 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, â€śConfidence intervals are underutilizedâ€ť 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. Use appropriate APA 7th ed format, citations and referencing.

Part 2 Please examine week 3 assignment uploaded and Choose an appropriate variable from the paper and calculate a confidence interval in SPSS. Write a 2- to 3-paragraph analysis of your confidence interval results and include a copy and paste your output from your analysis into your document. Based on the results of your data in this confidence interval Assignment, provide a brief explanation of what the implications for social change might be. For the Afrobarometer Dataset, report the mean of Q1 (Age). Use appropriate APA 7th ed format, citations and referencing.