# Change the last value to 27 and re compute the

• Test Prep
• 8
• 100% (5) 5 out of 5 people found this document helpful

This preview shows page 5 - 8 out of 8 pages.

Change the last value to 27 and re-compute the confidence interval. The numbers now are: 21, 28, 33, 34, 25, 26, and 27 Question options: 52; Upper - 41.929 .52; Upper - 31.909 .32; Upper - 35.861 .73; Upper - 51.994
What is an outlier and how does it affect the confidence interval?
View Feedback 6 / 6 points
The director of admissions at the University of Maryland, University College is concerned about the high cost of textbooks for the students each semester. A sample of 25 students enrolled in the university indicates that x(bar) = \$315.40 and s = \$43.20. Using a significance level of .1, what are the boundaries of the confidence interval?
View Feedback 6 / 6 points The director of admissions at the University of Maryland, University College is concerned about the high cost of textbooks for the students each semester. A sample of 25 students enrolled in the university indicates that x(bar) = \$315.40 and s = \$43.20. A mean that is not in a confidence interval is rejected by the confidence interval, and we say the evidence against the mean is significant. At the 0.10 level of significance, is there evidence against mean \$300?
e 300 is in the confidence interval