Test for a single population proportion

Reference no: EM1318218

It was conjectured that a majority of recovering alcoholics exhibit abnormal levels of depression. A psychologist gave a test called the Depression Adjective Checklist (DACL) to a sample of 45 recovering alcoholics and found that 25 had above-average depression levels. At the 5% level of significance, does this result support the conjecture?

a) Use the classical approach.

b) Use the P-value approach.

Reference no: EM1318218

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