Problem 1. Name the test statistics that you will use in each of the following s

Question

Problem 1. Name the test statistics that you will use in each of the following situations. a) A researcher is conducting an experiment to compare the average amount of heat generated by two computer processors. He selected a sample of 12 computers with processor of type 1 and another sample of 12 computers with processor of type 2. He measured the amount of heat generated by each computer processor b) A statistics professor wants to see if the performance of his students has improved after the midterm. He selected a sample of 20 students and noted their grade on the midterm and in the final exams. The test to use is c) The traffic department claims that, in a three lane highway, 20% of the drivers use the left lane, 5096 use the middle lane and 30% use the right lane. To verify this, a researcher observed a sample of 500 drivers and noted on which lane they are driving d) An engineer wants to study the effect of a catalyst and temperature on the yield of a chemical process. He carried a replicated experiment using all combinations of three different catalysts and four different temperatures. The test to use is e) When testing the equality of three or more population proportions

Explanation / Answer

a)

the test to use is -- t test

b)

the test to use is -- t test

c)

the test to use is -- z test

d)

the test to use is -- F test

e)

the test to use is -- F test

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