Explore BrainMass

Confidence Interval with t test

This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

use the Confidence Interval Calculator and the Area Gas Prices - Random Sample Excel file

The Minneapolis Star Tribune newspaper has decided to write an article about gasoline prices in the Twin Cities area (Minneapolis and St. Paul). The paper has designed a survey and taken a simple random sample of regular, unleaded gas prices at 35 area stations. The results are in the Area Gas Prices - Random Sample Excel file. Use this data to develop a 95% confidence interval for the average price of regular, unleaded gasoline in the area.

© BrainMass Inc. brainmass.com March 21, 2019, 11:31 pm ad1c9bdddf


Solution Summary

This solution is comprised of a detailed explanation of Confidence Interval using t test. In this solution, all the possible explanation of this complicated topic provides students with a clear perspective of confidence interval.