Effectiveness of an antismoking campaign

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Suppose for Problem 12 that the director's purpose in carrying out the recent study was c12.qxd 6/to check on the effectiveness of an antismoking campaign at the university, instituted shortly after the completed survey of 2 years ago.

(a) Set up H0 and HA.

(b) Perform the statistical test (.05).

(d) Compare your conclusions with those from Problem 12.What does this suggest about which is more likely to give significant results: a two-tailed test or a one-tailed test (provided the direction specified in HA is correct)?

Reference no: EM131852697

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