An educational software company wanted to see if students improved their entrepreneurial skills after participating in five rounds of their game. Twenty-five randomly selected students participated in the study. They first completed a pretest on entrepreneurial skills, then completed 5 rounds of the game, and then took a post-test. The students were scored on a numerical scale. A higher score is better. They found the difference in the ratings by finding d = pre-post. What is the appropriate alternative hypothesis? Ha: d_bar < 0 O Ha: mu_d < 0 Ha: d_bar0 O Ha: mu_d>0

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An educational software company wanted to see if students improved their entrepreneurial skills
after participating in five rounds of their game. Twenty-five randomly selected students participated
in the study. They first completed a pretest on entrepreneurial skills, then completed 5 rounds of the
game, and then took a post-test. The students were scored on a numerical scale. A higher score is
better.
They found the difference in the ratings by finding d = pre-post.
What is the appropriate alternative hypothesis?
Ha: d bar 0
Ha: mu_d0
Ha: d bar > O
Ha: mu_d>0
Transcribed Image Text:An educational software company wanted to see if students improved their entrepreneurial skills after participating in five rounds of their game. Twenty-five randomly selected students participated in the study. They first completed a pretest on entrepreneurial skills, then completed 5 rounds of the game, and then took a post-test. The students were scored on a numerical scale. A higher score is better. They found the difference in the ratings by finding d = pre-post. What is the appropriate alternative hypothesis? Ha: d bar 0 Ha: mu_d0 Ha: d bar > O Ha: mu_d>0
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Here want to test if the students improve their entrepreneurship skills after participating in five rounds of the game.

So find difference as=pre-post

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