The Telecommunications industry achieved a more rapid increase in ROI during its initial 75 years in existence than the Oil & Gas industry achieved.
Which business sector, Oil & Gas or Telecommunications, achieved the greater ROI as their relative business sector matured?"
Assuming level of significance α= .05
3. Calculate test statistic.
4. Compute probability of test statistic.
5. Describe the results of your test.
[See the attached question file.]© BrainMass Inc. brainmass.com June 3, 2020, 9:38 pm ad1c9bdddf
The solution file is attached.
(1) H0: The Telecommunications industry achieved about the same or lesser ROI than the Oil & Gas sector,
that is 2 1
Ha: The Telecommunications industry achieved a greater ROI than the Oil & Gas sector, that is, 2 > 1
(2) Upper-tailed t- test for the difference in means of independent samples with = 0.05
The expert examines hypothesis testing in probability statistics. Neat, step-by-step solution is provided.