A random sample of 39 observations with a mean of 95 is selected from a normally distributed population. Assume the p_opu|ation standard deviation is 18. 1. In developing a(n) 83% confidence interval estimate for the population mean, determine the following values: a) [Do not round] Point Estimate=[:] b) [2 decimal places] Significance level (o)=[:] Round the critical value to two (2) decimal places and use the rounded value to calculate the remaining parts. 0) [Enter a positive value] Critical value=D d) [3 decimal places] Standard Error of the Mean =[:] e) [1 decimal place] Margin of Error=[:] f) [1 decimal place] Lower Confidence Limit = C] Q) [1 decimal place] Upper Confidence Limit :C] 2. How large a sample is required to keep the margin of error within 5 units with 83% confidence? Report your answer as an integer. D Question Help: El Video 8 Message instructor Submit