1-sample T-test Analysis in Hypothesis Testing
A manufacturing process aims to produce metal rods with a mean diameter of 10 mm. A quality engineer randomly selects a sample of 15 rods and measures their diameters. The sample data reveals a mean diameter of 9.8 mm with a sample standard deviation of 0.5 mm. Using a significance level of \(\alpha = 0.05\), […]
Recall of the 1-Sample T-Test Formula
State the formula for the one-sample t-test and clearly define each component of the formula.
Simple One-Sample t-Test Application
A study tests whether a new drug has an effect on blood pressure. Given that the known population mean blood pressure is 120 mm Hg, a sample of 25 patients yields a sample mean of 115 mm Hg with a sample standard deviation of 10 mm Hg. Using a significance level of 0.05, perform a […]