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There is conflicting information about whether a new medication affects a person's ability to concentrate as measured by time spent on a task.
You wish to test the following claim (HaHa) at a significance level of α=0.001α=0.001. For the context of this problem, μd=μ2-μ1μd=μ2-μ1 where the first data set represents a pre-test measure of time on task and the second data set represents a post-test measure of time on task.
Ho:μd=0Ho:μd=0
Ha:μd<0Ha:μd<0
You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain the following sample of data:
Pre Test Post test
54.3 49.2
46.4 28.2
57.6 17.5
48.6 21.8
39 -9.5
39.4 38.8
46.8 42.1
43.7 44.3
What is the test statistic for this sample? (Report answer accurate to three decimal places.)
test statistic =
What is the p-value for this sample? (Report answer accurate to four decimal places.)
p-value =
The p-value is...
This test statistic leads to a decision to...
As such, the final conclusion is that...
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Caselet on McDonald’s vs. Burger King - Waiting time
Generate descriptive statistics. Create a stem-and-leaf plot of the data and box plot of the data.
Problems on Sampling Variability and Standard Error and Confidence Intervals
Estimate the population mean
Conduct a marketing experiment in which students are to taste one of two different brands of soft drink
Find out the probability
LINEAR PROGRAMMING MODELS
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