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

question 113

Multiple Choice

A researcher performs a hypothesis test to test the claim that among girls aged 9-10,the mean score on a particular aptitude test differs from 72,which is the mean score for boys of the same age.Use the computer output below to draw a conclusion about the girls' scores,using a significance level of 0.05. Test of $\mathrm { H } _ { 0 }$ : ? = 72 vs $\mathrm { H } _ { \mathrm { A } }$ : ? ? 72
N Mean StDev t P-value
19 75.88 12.7 1.33 0.20

• A)Reject the null - there is sufficient evidence to say that girls' aptitude scores are different from 72.
• B)Reject the null - there is not sufficient evidence to say that girls' aptitude scores are different from 72.
• C)Fail to reject the null - there is evidence to say that girls' aptitude scores are different from 72.
• D)Fail to reject the null - there is not sufficient evidence to say that girls' aptitude scores are different from 72.
• E)There is insufficient information to draw a conclusion.

---

Definitions:

Life Outcomes

The results or consequences experienced in an individual's life as a result of various contributing factors like education, health, and decisions made.

Cohabitation Experience

The circumstances and dynamics of individuals living together in a romantic relationship without being married.

Emotional Security

A state of mind where an individual feels safe, valued, and free from fear or anxiety, often within personal relationships.

Cohabitation

The state of living together and having a sexual relationship without being married.