4. A researcher is interested in whether daily positive affirmations can lead to positive academic outcomes in students of low socio-economic status. They took a group of 8th graders and had them read a brief positive affirmation every day for a month. They compared scores on an assessment before and after the affirmations. The data is presented below. Each row is data from one subject. Conduct the steps of hypothesis testing on these data. Before positive affirmations After positive affirmations 74 72 76 76 72 82 77 85 83 88

MATLAB: An Introduction with Applications
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4. A researcher is interested in whether daily positive affirmations can lead to positive
academic outcomes in students of low socio-economic status. They took a group of 8th
graders and had them read a brief positive affirmation every day for a month. They
compared scores on an assessment before and after the affirmations. The data is
presented below. Each row is data from one subject. Conduct the steps of hypothesis
testing on these data.
Before positive affirmations
After positive affirmations
74
72
76
76
72
82
77
85
83
88
Transcribed Image Text:4. A researcher is interested in whether daily positive affirmations can lead to positive academic outcomes in students of low socio-economic status. They took a group of 8th graders and had them read a brief positive affirmation every day for a month. They compared scores on an assessment before and after the affirmations. The data is presented below. Each row is data from one subject. Conduct the steps of hypothesis testing on these data. Before positive affirmations After positive affirmations 74 72 76 76 72 82 77 85 83 88
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