Mathematics, 26.11.2019 07:31 nacho5317
Two new mathematics learning techniques are being tested. the researchers are unsure which one, if any, will be better. two hundred students were randomly selected from a population. ninety of them were randomly assigned to use technique a, and 110 of them were randomly assigned to use technique beach student spent 30 minutes learning the technique to which they were assigned, and then were asked to complete a task. the time to complete the task was recorded, in seconds. a shorter time indicates better mastery ofthe task. the data are below: technique a: sample average = 26.1, sample sd = 7.2technique b: sample average = 27.9, sample sd = 12.4(a) state hypotheses relevant to the research question.(b) perform a test of the hypotheses from (a) using a significance level of 10%. make sure to compute the test statistic and p-value, and make a conclusion in context.
Answers: 1
Mathematics, 20.06.2019 18:04
Horace's speedometer reads 60 miles per hour, but during a road test he finds that he was actually driving 58 mph. what is the percent error in horaces speedometer?
Answers: 1
Mathematics, 21.06.2019 14:00
In factoring by grouping, what would you have for step 3 for the following? step 1: x^3 +5x^2 +4x+20 step 2: x^2 (x+5)+4(x+5) step 3: ?
Answers: 2
Mathematics, 21.06.2019 14:30
Compare these two waves: the blue and orange waves have the same pitch, but the blue wave is louder. the blue and orange waves have the same volume, but the blue wave has a higher pitch. the orange wave has a higher pitch, but the blue wave is louder. the blue wave has a higher pitch, but the orange wave is louder.
Answers: 1
Two new mathematics learning techniques are being tested. the researchers are unsure which one, if a...
Social Studies, 21.12.2020 03:50
Mathematics, 21.12.2020 03:50
History, 21.12.2020 03:50
Mathematics, 21.12.2020 03:50
Biology, 21.12.2020 03:50
Biology, 21.12.2020 03:50
Biology, 21.12.2020 03:50
Mathematics, 21.12.2020 03:50
Mathematics, 21.12.2020 03:50