Redo given problem using a two-tailed test. Did your results change? Compare the p-values of the two tests. Explain.
Problem
An article in BusinessWeek says: "Today companies use a mere 40% of their space." Suppose you want to disprove this claim, suspecting that it is an upward exaggeration. A random sample of the percentage used space for companies is 38, 18, 91, 37, 55, 80, 71, 92, 68, 78, 40, 36, 50, 45, 22, 19, 62, 70, 82, 25. Conduct the test using α = 0.05.