- +1-530-264-8006
- info@tutorsglobe.com

Calculate confidence intervals

In a study using 15 samples, and in which the population variance is unknown, the distribution that should be used to calculate confidence intervals is

A. a standard normal distribution.

B. a t distribution with 14 degrees of freedom.

C. a t distribution with 15 degrees of freedom.

D. a t distribution with 16 degrees of freedom.

Expected delivery within 24 Hoursrs

18,76,764

Questions

Asked

21,311

Experts

9,67,568

Questions

Answered

Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!

Submit Assignment2015 © Tutors Globe. All rights reserved.

## Q : Approximate value of t using the t-test

If you studied 40 men in Group 1 and they have a mean of 7 and a standard deviation of 2.5, while the 35 men in Group 2 have a mean of 5 and a standard deviation of 1.4, what is the approximate value of t using the t-test?