In a study of the accuracy of fast food drive-through orders, one restaurant had 38 orders that were not accurate among 322 orders observed. Use a 0.01 significance level to test the claim that the rate of inaccurate orders is equal to 10%. Does the accuracy rate appear to be acceptable? Identify the null and alternative hypotheses for this test. Choose the correct answer below. Identify the test statistic for this hypothesis test. Identify the P-value for this hypothesis test. Identify the conclusion for this hypothesis test.
In a study of the accuracy of fast food drive-through orders, one restaurant had 38 orders that were not accurate among 322 orders observed. Use a 0.01 significance level to test the claim that the rate of inaccurate orders is equal to 10%. Does the accuracy rate appear to be acceptable?
Identify the null and alternative hypotheses for this test. Choose the correct answer below.
Identify the test statistic for this hypothesis test.
Identify the P-value for this hypothesis test.
Identify the conclusion for this hypothesis test.
Given,
The sample proportion is,
The null and alternative hypothesis is:
Calculate test statistic:
Under the null hypothesis, the test statistic for one sample proportion is,
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