# Estimate a Population Mean or a Population Proportion

Last updated: 1/30/2024

Estimate a Population Mean or a Population Proportion Identify the appropriate confidence interval to answer each research question below Make sure to identify each of the following for each research question 1 Identify observational unit 2 Identify the response variable and label as categorical or quantitative 3 Check requirements for the normal model 4 Identify significance level and confidence level 5 Find the point estimate 6 Find the standard error 7 Find the margin of error 8 Construct confidence interval 9 Interpret confidence interval in non technical terms Prompt In your initial post respond to following discussion prompt After the due date the answer key will be published Check the answer key and respond to your original post with any needed corrections Within 2 days of the due date respond to 2 other posts Answer the following questions 1 An IQ test was given to a random sample of 25 Norco College Students IQ scores are known to have a normal distribution The sample mean score is 105 2 Scores on this test are known to have a standard deviation of 10 It is desired to estimate