# Three-hundred students were given one of three different types of energy drinks: Stay Aware, I Don’t

Three-hundred students were given one of three different types of energy drinks: Stay Aware, I Don’t

Three-hundred students were given one of three different types of energy drinks: Stay Aware, I Don’t Sleep, or Caffeine for Days. They were then asked to take an exam. The following contingency table shows the number of students who drank each energy drink and the score they received on the test. Drink A B C D F Row Total Stay Aware 20 25 15 15 25 100 I Don't Sleep 30 15 25 20 10 100 Caffeine for Days 10 40 30 10 10 100 Column Total 60 80 70 45 45 300
Sample Size Answer the following questions on the base of this table data. 1.What is the expected frequency for the number of students in the sample who were given “Stay Aware” and made a C on the test? Round to the nearest whole number. 2.What is the expected frequency for the number of students in the sample who were given “Caffeine for Days” and made a D on the test? Round to the nearest whole number. 3.Determine the size of the contingency table.  4.  Calculate the expected values. Round all values to the nearest whole number. Scroll right to left to view all columns  Drink A B C D F Row Total Stay Aware #1
O=20
E= #2
O=25
E= #3
O=15
E= #4
O=15
E= #5
O=25
E= 100 I Don't Sleep #6
O=30
E= #7
O=15
E= #8
O=25
E= #9
O=20
E= #10
O=10
E= 100 Caffeine for Days #11
O=10
E= #12
O=40
E= #13
O=30
E= #14
O=10
E= #15
O=10
E= 100 Column Total 60 80 70 45 45 300
Sample Size 5. Determine the test statistic, χ2. Round to the nearest hundredth.
Apr 06 2022 12:55 PM

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