Construct the indicated confidence interval for the populatión mean p using thet-distribution C = 0.95, x= 14.1, s= 2.0, n =5 (Round to one decimal place as needed.)

From a sample of 36 graduate students, the mean number of months of work experience prior to entering an MBA program was 33.39. The national standard deviation is known to be 19 months. What is a 95% confidence interval for the population mean? A 95% confidence interval for the population mean is (Use ascending order. Round to two decimal places as needed.)

The mayor is interested in finding a 90% confidence interval for the mean number of pounds of trash per person per week that is generated in the city. The study included 212 residents whose mean number of pounds of trash generated per person per week was 37.9 pounds and the standard deviation was 7.7 pounds. Round answers to 3 decimal places where possible. b. With 90% confidence the population mean number of pounds per person per week is between _______ and  ________ pounds. c. If many groups of 212 randomly selected members are studied, then a different confidence interval would be produced from each group. About __________ percent of these confidence intervals will contain the true population mean number of pounds of trash generated per person per week and about ____________ percent will not contain the true population mean number of pounds of trash generated per person per week.

Suppose the population standard deviation is  = 5, an SRS of n = 100 is obtained, and the confidence level is chosen to be 99.5%. The margin of error for estimating a mean  is given by:   a. 1.576.   b. 1.165.   c. 1.404.   d. 1.223.