Question: TIMS is an acronym for the Third International Mathematics and
TIMS is an acronym for the Third International Mathematics and Science Study. Kumon promotes a method of studying mathematics that it claims develops mathematical ability. Do data support this claim? In one particular question on the TIMS exam, a random sample of 400 non-Kumon students resulted in 73 getting the correct answer. For the same question, a random sample of 400 Kumon students resulted in 130 getting the correct answer. Perform the appropriate test to substantiate Kumon’s claims. Are there any confounding factors regarding the claim? Perform the appropriate hypothesis test.
Answer to relevant QuestionsList and explain the three sources of bias in sampling. Provide some methods that might be used to minimize bias in sampling. Based on the Military Standard 105E (ANS1/ASQC Z1.4, ISO 2859) Tables, a lot of 91 to 150 items with an acceptable quality level (AQL) of 1% and a normal inspection plan would require a sample of size 13 to be inspected for ...A sports reporter asks 100 baseball fans if Barry Bonds’s 756th homerun ball should be marked with an asterisk when sent to the Baseball Hall of Fame. Determine whether the study depicts an observational study or a ...In a General Social Survey, adult Americans were asked if they were happy or unhappy, and they were asked whether they were healthy or unhealthy. The table shows the results of the survey. Are healthy people also happy ...In a study published in the journal Teaching of Psychology, the article “Fudging the Numbers: Distributing Chocolate Inﬂuences Student Evaluations of an Undergraduate Course” states that distributing chocolate to ...
Post your question