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A coffee shop owner wants to stock only the best-tasting coffee she can find. She buys 3 different kinds of coffee beans, brews them, and gives out samples to 300 people who walk by her shop. Every person who walks by is given one unlabeled cup of coffee, and is asked to rate each one on a scale from 1-10. A third of the people received coffee A, a third received coffee B, and a third received coffee C). To figure out which coffee is preferred, what is the appropriate STATISTICAL TEST she should use? (Assume her data is normally-distributed). *
Two-Way ANOVA
Independent-Samples t-test
Paired-samples t-test
One-Way ANOVA
In another you find the 4 year probability for diabetes is 0.5. Calculate the 1 year probability of getting diabetes.
Carefully define a standard normal distribution. Why does a researcher want to go from a normal distribution to a standard normal distribution? Explain.
What type of data would you expect to get from the following questions? Make suggestions as to how these questions could be improved?
Four wood boards 1 in. by 6 in. in cross section are stacked as shown and used as an 8-ft-long simply supported beam. A 400-lb concentrated load is applied.
Construct a 95% confidence interval for the mean response time for all the claims.
Need research proposal about the prevalence of Iron deficiency anemia (IDA) in early pregnancy in hail region
"Adults Who Stutter: Responses to Cognitive Stress," published in the Journal of Speech and Hearing Research in 1994, reported that speech rate
At one Las Vegas casino, if you net $5 that a 12 will come up as the total points on two dice, and you win, you will get back $50. If any total other than 12 comes up, you get back $0.
Calculate the effect size index for the students' Doritos data, and interpret it using the conventions that researchers use.
On a large college campus first-year students and sophomores live in dorms located on the eastern part of the campus and juniors and seniors.
A large department store wants to test whether the variance of waiting time in two checkout counters is approximately equal.
Overall, the survey contacted 1302 men and claims a margin of ±2.9% error of Why is the margin of error different for your confidence interval?
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