A data analyst is using a two-tailed, independent t-test to determine whether the type of stretching, dynamic or static, has any influence on a dancer’s flexibility. Which of the following is the alternative hypothesis?
A.
A dancer’s flexibility is improved through static stretching.
B.
The change in a dancer’s flexibility is not equal to zero.
C.
There is a difference in a dancer’s flexibility between static and dynamic stretching.
D.
The means of the static and dynamic stretching groups do not differ from each other.
C. In a two-tailed, independent t-test comparing the influence of two different types of stretching (dynamic and static) on a dancer's flexibility, the alternative hypothesis (H₁) would typically express the idea that there is a difference between the two groups. This hypothesis suggests that there is a statistically significant difference in flexibility between dancers who perform static stretching and those who perform dynamic stretching.
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Swift_and_Quick
6 months, 3 weeks ago