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REAKFAST AND TEST SCORES 2 of 4 What is the critical z/t score at α = 0.05? Conventional wisdom says that eating a healthy breakfast can improve your health and your weight, but can it also affect your test scores? In order to test this, a school program convinces a group of students to skip breakfast one morning before taking a Basic English test. Eighteen students received breakfast before taking the test, and twenty-one students did not eat breakfast and recorded their performance on the English test. What is the critical z/t score at α = 0.05? Their results are as follows:

REAKFAST AND TEST SCORES 2 of 4 What is the critical z/t score at α = 0.05? Conventional wisdom says that eating a healthy breakfast can improve your health and your weight, but can it also affect your test scores? In order to test this, a school program convinces a group of students to skip breakfast one morning before taking a Basic English test. Eighteen students received breakfast before taking the test, and twenty-one students did not eat breakfast and recorded their performance on the English test. What is the critical z/t score at α = 0.05? Their results are as follows:

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BREAKFAST AND TEST SCORES 2 of 4 What is the critical z/t score at α = 0.05? Conventional wisdom says that eating a healthy breakfast can improve your health and your weight, but can it also affect your test scores? In order to test this, a school program convinces a group of students to skip breakfast one morning before taking a Basic English test. Eighteen students received breakfast before taking the test, and twenty-one students did not eat breakfast and recorded their performance on the English test. What is the critical z/t score at α = 0.05? Their results are as follows: 

Didn't Eat Breakfast N1 = 21 X = 72 S = 5 Ate Breakfast N2 = 18 X2 = 77 S2 = 4.5 %3D
Transcribed Image Text:Didn't Eat Breakfast N1 = 21 X = 72 S = 5 Ate Breakfast N2 = 18 X2 = 77 S2 = 4.5 %3D
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