Question

Lecture 19: Problem 1. Previous Problem List Next (1 point) The table below shows the lengths of some randomly chosen CDs in John's very large collection. Give the 93% confidence interval for the population mean, assuming that the population is approximately normally distributed. Round the endpoints to two decimal places. 53.47 64.0935.87 64.78 47.13 67.85 38.29 39.02 39.77 44.89 37.96 37.91 74.12 67.82 57.31 60.52 68.88 54.76 57.78 56.38 43.77 54.23 38.21 59.32 71.33 Confidence interval: Note: You can earn partial credit on this problem. Note: You can get a new version of this problem after the due date. Preview My Answers Submit Answers

Answer 1

The statistic software output for this problem is:

One sample T confidence interval: : Mean of variable 93% confidence interval results: Variable Sample Mean Std. Err. DF L. Limit U. Limit Data 53.4184 2.4577414 24 48.757399 58.079401

Confidence interval : (4876 , 58.08)