We illustrate the MINITAB commands and output for the two-sample r test. The approximate t test is
Question:
Difference = mu (CI) - mu (C2)
Estimate for difference: -3.17
95% CI for difference:
(-7.61, 1.28)
T-Test of difference = 0 (vs not =): T-Value = -1.83
P-value = 0.127 DF = 5
Both use Pooled StDev = 2.2657
(a) From the output, what is the conclusion to testing H0: μ1, - μ2 = 0 versus a two-sided alternative at level α = .05?
(b) Refer to Table 12 of the Data Bank. Find a 97% confidence interval for the difference of mean monthly amount charged by the first and second age groups.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Related Book For
Statistics Principles And Methods
ISBN: 9780470904114
7th Edition
Authors: Richard A. Johnson, Gouri K. Bhattacharyya
Question Posted: