# One-sample test of hypothesis for proportions

The Web-based company Oh Baby! Gifts has a goal of processing 95 percent of its orders on the same day they are received. If 485 out of the next 500 orders are processed on the same day, would this prove that they are exceeding their goal, using alpha = .025?

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#### Solution Preview

The Web-based company Oh Baby! Gifts has a goal of processing 95 percent of its orders on the same day they are received. If 485 out of the next 500 orders are processed on the same day, would this prove that they are exceeding their goal, using alpha (a) = .025?

Data

Hypthesized proportion= 95%

Sample proportion= 97% =485/500

Sample size= 500

Significance level= 0.025

1) Hypothesis

Null Hypothesis: Ho: p = 95% (:Proportion is 95.%)

Alternative ...

#### Solution Summary

Tests the hypothesis that a company is exceeding its goal of processing 95 percent of its orders on the same day.