Mathematics, 14.04.2020 16:31 hajanaetowens
When I sit and watch my students take exams, I often think to myself "I wonder if students with bright calculators are impacted by the pretty colors." This leads me to wonder if there is a difference in the exam scores of students with colorful calculators versus the exam scores of students with plain black calculators. To investigate further, I took a sample of past students. There were 49 students with colorful calculators with a mean exam score of 84 and a corresponding standard deviation of 4.7. There were 38 students with plain black calculators with a mean exam score of 87 and a corresponding standard deviation of 5.7. Is there sufficient evidence to suggest the mean exam scores of my STA 215 students with colorful calculators are different than the mean scores of my STA 215 students with plain black calculators
Answers: 2
Mathematics, 21.06.2019 21:30
Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 25002500 grams and a standard deviation of 800800 grams while babies born after a gestation period of 40 weeks have a mean weight of 27002700 grams and a standard deviation of 385385 grams. if a 3232-week gestation period baby weighs 21252125 grams and a 4040-week gestation period baby weighs 23252325 grams, find the corresponding z-scores. which baby weighs lessless relative to the gestation period?
Answers: 1
Mathematics, 21.06.2019 22:30
Ingredient c: 1/4 cup for 2/3 serving or ingredient d: 1/3 cup for 3/4 serving which unit rate is smaller
Answers: 2
Mathematics, 21.06.2019 22:30
What fraction is equivalent to 0.46464646··· a. 46⁄99 b. 46⁄999 c. 46⁄100 d. 23⁄50
Answers: 1
Mathematics, 22.06.2019 00:30
If you were constructing a triangular frame, and you had wood in the length of 4inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no. explain your mathematical thinking
Answers: 2
When I sit and watch my students take exams, I often think to myself "I wonder if students with brig...
History, 15.12.2021 06:00
Mathematics, 15.12.2021 06:00
Mathematics, 15.12.2021 06:00
History, 15.12.2021 06:00
Physics, 15.12.2021 06:00
Mathematics, 15.12.2021 06:00
Physics, 15.12.2021 06:00
History, 15.12.2021 06:10