# stats- confidence intervals

**Question description**

Confidence Interval, is not known or n<30.

For a group of 20 students taking a final exam, the mean heart rate was 96 beats per minute and the standard deviation was 5. Find the 95% confidence interval of the true mean.

1. Find the critical value

2. Find the margin of error: E =

3. Find the confidence interval: CI =

Write the conclusion.

## Tutor Answer

**Quality**

**Communication**

**On Time**

**Value**

Brown University

1271 Tutors

California Institute of Technology

2131 Tutors

Carnegie Mellon University

982 Tutors

Columbia University

1256 Tutors

Dartmouth University

2113 Tutors

Emory University

2279 Tutors

Harvard University

599 Tutors

Massachusetts Institute of Technology

2319 Tutors

New York University

1645 Tutors

Notre Dam University

1911 Tutors

Oklahoma University

2122 Tutors

Pennsylvania State University

932 Tutors

Princeton University

1211 Tutors

Stanford University

983 Tutors

University of California

1282 Tutors

Oxford University

123 Tutors

Yale University

2325 Tutors