A Researcher Performs a Hypothesis Test to Test the Claim $\mathrm { H } _ { 0 }$

question 122

Multiple Choice

A researcher performs a hypothesis test to test the claim that among car owners in one town,the mean number of kilometres driven per year is greater than 22,540.Use the provided computer output to draw a conclusion about the number of miles driven at a significance level of 0.01. Test of $\mathrm { H } _ { 0 }$ : ? = 22,540 vs $\mathrm { H } _ { \mathrm { A } }$ : ? > 22,540
N Mean StDev t P-value
26 25,270 6750 2.06 0.025

• A)Reject the null - there is sufficient evidence to say that car owners in the town drive more than 22,540 km/yr on average.
• B)Reject the null - there is not enough evidence to say that car owners in the town drive more than 22,540 km/yr on average.
• C)Fail to reject the null - there is not enough evidence to say that car owners in the town drive more than 22,540 km/yr on average.
• D)Fail to reject the null - there is sufficient evidence to say that car owners in the town drive more than 22,540 km/yr on average.
• E)There is insufficient information to draw a conclusion.

---

Definitions:

Positive

Characterized by the presence rather than absence of distinguishing features.

Peptide Hormones

Biomolecules that act as signaling molecules in the body, composed of short chains of amino acids.

Amino Acids

Organic compounds that combine to form proteins, serving as building blocks for life.

Receptors

Specialized cells or proteins on cell surfaces or within cells that bind to specific substances, triggering a cellular response.