A Hypothesis Test Is to Be Performed for a Population $z = \frac { \hat { p } - \mathrm { p } _ { 0 } } { \sqrt { { p } _ { 0 } \left( 1 - \mathrm { p } _ { 0 } \right) / \mathrm { n } } }$

question 84

Multiple Choice

A hypothesis test is to be performed for a population proportion. For the given sample data and null hypothesis, compute the value of the test statistic, $z = \frac { \hat { p } - \mathrm { p } _ { 0 } } { \sqrt { { p } _ { 0 } \left( 1 - \mathrm { p } _ { 0 } \right) / \mathrm { n } } }$
-A research group wants to determine whether the proportion of car accidents caused by drivers using cell phones has changed from the previous value of 13%. They obtained 10,000 auto accident
Reports and found that 14% were caused by drivers using cell phones. The hypotheses are $\mathrm { H } _ { 0 } : \mathrm { p } = 0.13 , \mathrm { H } _ { \mathrm { a } } : \mathrm { p } \neq 0.13$
where p is the proportion of car accidents caused by drivers using cell
Phones.

• A)1.011
• B)2.974
• C)4.133
• D)5.947

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Definitions:

Subjective Data

Information about the patient’s condition that includes thoughts, feelings, and perceptions.

Chief Complaint

The primary symptom or concern reported by a patient seeking medical care.

Legal Record

Official documentation of events or transactions that are recognized by law, often used as evidence in court.

Closed-ended Questions

Questions structured to elicit a specific, often yes-or-no answer, limiting the range of responses.