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Two types of calculators are compared to determine if there is a difference in the time required to perform a certain common statistical calculation. Twelve students chosen at random are given drills with both calculators so that they are familiar with the operation of each type. Then the time they take to complete the calculation on each device is measured in seconds (which calculator there are to use first is determined by some random procedure to control for any additional learning during the first calculation). a-0.05 Construct a 95% confidence interval about the population mean difference. Interpret your results. Math 605 Inference about two means: Dependent Sample Student 1 2 7 8 9 10 11 12 4 5 6 Calc A 23 18 29 22 33 17 25 30 25 27 18 31 16 23 26 24 28 Calc B 19 23 27 24 20 22 24 3. Two types of calculators are compared to determine if there is a difference in the time required to perform a certain common statistical calculation. Twelve students chosen at random are given drills with both calculators so that they are familiar with the operation of each type. Then the time they take to complete the calculation on each device is measured in seconds (which calculator there are to use first is determined by some random procedure to control for any additional learning during the first calculation). a-0.05 Construct a 95% confidence interval about the population mean difference. Interpret your results. Math 605 Inference about two means: Dependent Sample Student 1 2 7 8 9 10 11 12 4 5 6 Calc A 23 18 29 22 33 17 25 30 25 27 18 31 16 23 26 24 28 Calc B 19 23 27 24 20 22 24 3.
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Related Book For
Statistics Principles and Methods
ISBN: 978-0470904114
7th edition
Authors: Richard A. Johnson, Gouri K. Bhattacharyya
Posted Date:
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