# Answer and Steps to Statistics problem

**Question description**

Llantas Inc. claims that the average life of a certain tire is greater or equal than 25,000 miles under normal driving conditions. A random sample of 16 tires is tested. The mean of the sample is 24,000 miles and the standard deviation of the population is 4,000 miles. Use alpha = 0.05.

- State
the hypotheses H
_{0}and H_{1}. - Compute the test statistic to utilize.
- Identify if the test is a two-tail or a one-tail-test (draw the reject/fail-to-reject zones with the critical value(s)).
- Using any approach (Critical Value or p-value), what is your conclusion about the null hypothesis?

## Tutor Answer

## Review from our student for this Answer

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