A Researcher Performs a Hypothesis Test to Test the Claim

question 22

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.

• 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.

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Definitions:

Coefficient of Determination

A metric that quantifies the proportion of the variance in the dependent variable predictable from the independent variable(s).

Television Game Shows

Competitive entertainment programs on television where participants play games to win prizes.

Regression Line

A straight line that best fits the data points on a scatter plot, used in linear regression to model the relationship between independent and dependent variables.

Population Slope

In the context of regression analysis, it refers to the true slope parameter that describes how the dependent variable changes with the independent variable in the population.