Chapter 8.1, Problem 26BSC

Final Conclusions. In Exercises 25–28, use a significance level of α = 0.05 and use the given information for the following:

a. State a conclusion about the null hypothesis. (Reject H₀ or fail to reject H₀.)

b. Without using technical terms or symbols, state a Final conclusion that addresses the original claim.

26. Original claim: Fewer than 90% of adults have a cell phone. The hypothesis test results in a P-value of 0.0003.