A simple random sample of size n=200 drivers with a valid driver's license is asked if they drive an American-made automobile. Of the 200 drivers surveyed, 106 responded that they drive an American-made automobile. Determine if a majority of those with a valid driver's license drive an American-made automobile at the a=0.05 level of significance. What type of variable is "drive an American-made automobile, or not? OA. Qualitative with more than two possible outcomes OB. Discrete OC. Continuous OD. Qualitative with two possible outcomes CETTE

A simple random sample of size n=200 drivers with a valid driver's license is asked if they drive an American-made automobile. Of the 200 drivers surveyed, 106 responded that they drive an American-made automobile. Determine if a majority of those with a valid driver's license drive an American-made automobile at the a=0.05 level of significance. What type of variable is "drive an American-made automobile, or not? OA. Qualitative with more than two possible outcomes OB. Discrete OC. Continuous OD. Qualitative with two possible outcomes CETTE

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Q2) Paired-Samples t Test A research project has been tracking the health and cognitive functions of the elderly population in Arizona. The table below shows the memory test scores from some elderly residents, tested first when they were 65 years old and again when they were 75 years old. The researcher wants to know if there is a significant decline in memory functions from age 65 to age 75 based on this sample. In other words, it is hypothesized that the memory score at age 75 is significantly lower than the memory score at age 65. So the null and alternative hypotheses should be directional. The alpha level was set at a = .05 for a one-tailed hypothesis test. Memory score Subject 1 2 3 4 5 6 7 8 9 10 Age 65 62 95 55 90 98 73 73 71 82 66 Age 75 65 88 56 89 90 75 70 70 80 62
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