Mathematics, 10.12.2021 22:30 mayahgrimes
a university coordinator wonders if there is a difference in total points earned in an introductory psychology class between students taught by method x and those taught by method y. two classes with 230 students in each class were selected for the study. the two groups of students were paired on the basis of intelligence and then randomly assigned to one of the two methods. which test statistic should we use to analyze these results?
Answers: 3
Mathematics, 21.06.2019 17:50
Find the cosine function that is represented in the graph.
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Mathematics, 21.06.2019 18:00
The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 3 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30∘c on monday, but decreased at a constant rate in the next 3 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.
Answers: 1
Mathematics, 21.06.2019 18:40
Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.
Answers: 3
Mathematics, 21.06.2019 23:00
How many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.) how many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.)
Answers: 2
a university coordinator wonders if there is a difference in total points earned in an introductory...
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