Assume that the average person in america weighs 150 pounds, Ask an Expert

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Assume that the average person in America weighs 150 pounds (μ). You want to determine whether colleges students weigh less than the average America, Following are the weights collected on a sample of colleges students: 120, 105, 166, 170, 145, 149, 135, 115, 168, 138.

a) Is this a one- or two-tailed test?

b) What are Ho and Ha for this study?

c) Compute tobt

d) What is tcv?

e) Should Ho be rejected? What should the researcher conclude?

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