A researcher intends to estimate the effect of a drug on the scores of human subjects performing
Question:
The mean score in this group was 9.78, and the sample variance was 17.64. An independent random sample of 10 subjects was used as a control group and given a placebo prior to testing. The mean score in this control group was 15.10, and the sample variance was 27.01. Assuming that the population distributions are normal with equal variances, find a 90% confidence interval for the difference between the population mean scores.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Related Book For
Statistics For Business And Economics
ISBN: 9780132745659
8th Edition
Authors: Paul Newbold, William Carlson, Betty Thorne
Question Posted: