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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?
For each of the following two scenarios/descriptions (pp.2), please select two responses, one to indicate the most appropriate test of inference
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Can the company claim that they are faster than the average utility?
Select the suitable hypothesis.H 0 : π ≥ .052; H 1 : π 0 if z
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