Question 12 An educator wants to determine whether a new cur

Question 12

An educator wants to determine whether a new curriculum significantly improves standardized test scores for students. She randomly divides 100 students into two groups. Group 1 is taught using the traditional curriculum, while group 2 is taught using the new curriculum. At the end of the school year, both groups are given the standardized test and the mean scores are compared. Determine whether the sample is dependent or independent. Indicate whether the response variable is qualitative or quantitative.

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Determine whether the sampling is dependent or independent.

a. The sampling is dependent because the individuals selected for one sample are used to determine the   individuals to be in a second sample.

b. The sampling is independent because the individuals selected to be in one sample are used to determine the individuals to be in the second sample.

c. The sampling is independent because the individuals selected to be in one sample do not dictate which individuals to be in the second sample.

The sampling is dependent because the individuals selected for one sample do not dictate which individuals are to be in a second sample.

Indicate whether the response variable is qualitative or quantitative.

a. The variable is quantitative because it is a numerical measure.

b. The variable is qualitative because it is an attribute classification.

c. The variable is quantitative because it is a attribute classification.

d. The variable is qualitative because it is a numerical measure.

Solution

Given

as in questions

1) two samples are called independent iff values of one samples are not depend on other so here every student IQ is independent of other so samples are independent so

C)The sampling is independent because the individuals selected to be in one sample do not dictate which individuals to be in the second sample.

hence C is correct option

2)as here Response variables are Mean of marks obtained by two groups so

A)The variable is quantitative because it is a numerical measure.

hence A option is correct