Mathematics, 19.11.2019 00:31, QueensQueens
Aresearcher would like to test whether a new teaching method enhances the concept understanding. in a paired sample t test, a random sample of 20 students were given a pre-test before a new method was introduced. after the new method was introduced , a post test was given. the differences of pre-test scores and post test scores ( d = post test score - pre test score) were recorded for all students. the sample mean difference and the standard deviation of differences for the 20 students were 2.82 and 3.7 respectively. what is the value of the t test statistic (for two decimal places) for the paired sample test?
Answers: 3
Mathematics, 21.06.2019 20:00, aaliyahvelasauez
Last one and the bottom answer choice is y=(x-4)^2+1 you guys!
Answers: 1
Mathematics, 22.06.2019 01:00, ryantrajean7
The collection of beautiful oil paintings currently on display at an art gallery well defined; set not well defined; not a set
Answers: 2
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