Training zoo animals. Refer to Exercise 2.193 (p. 136) and the Teaching of Psychology (May 1998) study
Question:
Training zoo animals. Refer to Exercise 2.193
(p. 136) and the Teaching of Psychology (May 1998) study in which students assisted in the training of zoo animals. A sample of 15 psychology students rated “The Training Game” as a “great”
method of understanding the animal’s perspective during training on a 7–1 point scale (where 1 = strongly disagree and 7 = strongly agree). The mean response was 5.87, with a standard deviation of 1.51.
a. Construct a 95% confidence interval for the true mean response of the students.
b. Suppose you want to reduce the width of the 95%
confidence interval to half the size obtained in part a.
How many students are required in the sample in order to obtain the desired confidence interval width?
Step by Step Answer:
Statistics Plus New Mylab Statistics With Pearson Etext Access Card Package
ISBN: 978-0134090436
13th Edition
Authors: James Mcclave ,Terry Sincich