An industrial designer wants to be 95 certain of the average

An industrial designer wants to be 95% certain of the average amount of time it takes an adult to assemble an “easy to assemble” toy. A sample of 16 yielded an average time of 19.92 minutes, with a sample standard deviation of 5.73 minutes. Assume all assumptions have been met for using the procedure. What statistical procedure would most likely be used to answer the research question?

A. Two matched samples Z or t test

B. Use regression to test the effect of an independent variable on a dependent variable

C. Construct confidence interval(s)

D. Two independent samples Z or t test

E. More than two independent samples F test (ANOVA)

F. One sample Z or t test

G. Use a chi-squared test

Solution

option C