he authors of a paper describe an experiment to evaluate the effect of using a cell phone on reaction time. Subjects were asked to perform a stimulated driving test while talking on a cell phone. While performing this task, occasional red and green lights flashed on the computer screen if a green light flash subjects were to continue driving but if a red light flash subjects would to break as quickly as possible reaction time (in msec) was recorded. The following summary statistics based on a graph that appeared in the paper N = 41. X bar = 530 s = 70 A) assuming that the sample is random/representative of the population, what other assumptions need to be true before we can create a confidence interval? B) construct a 98% confidence interval for μ, The mean time to react to a red light while talking on a cell phone. (Round your answer to three decimal places.)
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The authors of a paper describe an experiment to evaluate the effect of using a cell phone on reaction time. Subjects were asked to perform a stimulated driving test while talking on a cell phone. While performing this task, occasional red and green lights flashed on the computer screen if a green light flash subjects were to continue driving but if a red light flash subjects would to break as quickly as possible reaction time (in msec) was recorded. The following summary statistics based on a graph that appeared in the paper
N = 41. X bar = 530 s = 70
A) assuming that the sample is random/representative of the population, what other assumptions need to be true before we can create a confidence interval?
B) construct a 98% confidence interval for μ, The
C) draw a conclusion about the 98% confidence interval for μ, the mean time to react to a red light while talking on a cell phone.
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