10.4 Proportions

# Does the data provide evidence that rural voters

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Unformatted text preview: concludep2 ≤ 0 H0: p1 – campaign showed 120 out of upper Ha: p1 – p2 250Decision “aware” (of the approach):that the proportion &gt; 0 households Rule p-value tail test reject H0 if zSTAT &gt; zα client’s product. Reject H0 campaign Before the new if P(z &gt; zSTAT)&lt; α of households aware of H0: p1 – p2 ≥ 0 the began, a telephone survey of lower tail Ha: p1 – p2 &lt; 0 Statistical Decision: 150 households in the test test reject H0 if zSTAT product increased ≤ –zα zSTAT = 1.557 market area showed 60 after the new households P(z &lt; zSTAT) = 0.0597 “aware” of the H0: p1 – p2 = 0 0.0597 &gt; α = .05 ctwoampaign.a: p1 – p2 ≠ 0 client’s product. H CTherefore, p-value.05 not lesstailed an we conclude using a is reject H0 if zSTAT ≤ – lev...
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## This document was uploaded on 03/05/2014.

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