Question

don’t how to do Q34

Let u be the population mean of Revenue. To study the accuracy of the sample mean of Revenue based on the above sample, Peter conducts bootstrapping on StatKey and recorded the key outputs in the able below Original Bootstrap sample distribution 53.30 9.88 10,000 Sample mean Sample s.d No. of bootstrap samples 53.33 26.58 32. Using the 95% rule, which of the following is the 95% confidence interval for .? A) (37.08, 69.58) B) (33.57, 73.09) C) (26.78, 79.94) D) (23.69, 82.97) E) (0.20, 106.52) 33. which of the following is most likely the 90% confidence interval for ? A) (37.08, 69.58) B) (33.57, 73.09) C) (26.78, 79.94) D) (23.69, 82.97) E) (0.20, 106.52) 4. Which method below will narrow the interval estimate for u by the largest amount? A) B) C) D) E) Increase the number of bootstrap samples to 50,000 Run the same bootstrap simulation on a more powerful computer Increase the confidence level to 99.9999%. Record the revenues of 100 consecutive days and then bootstrap Record the revenues of 100 randomly picked days and then bootstrap

Answer 1

Answer to question 34

Option A) Increase the number of bootstrap samples to 50,000

On increasing the number of bootstrap samples, we reduce the standard error of the bootstrap estimator which decreases the product of the critical values and the standard error, thus reducing the net width of the interval estimator.