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A researcher is estimating influence of treatment using sample selected from normally distributed population with mean of µ = 80 and standard deviation of σ = 20. Researcher expects 12 point treatment effect and plans to use two-tailed hypothesis test with u α = .05
a. Calculate the power of test if researcher uses a sample of n = 16 individuals.b. Calculate power of test if researcher uses sample of n = 25 individuals.
Identify a key variable that you want to predict, and specify at least two variables that you think would be key in making that prediction.
Create the 99% confidence interval on difference of average ages for viewers of the two TV programs. How can you interpret interval?
A soft drink company has recently received customer complaints about its one-liter-sized soft drink products. Customers have been claiming that the one-liter-sized products contain less than one liter of soft drink.
Five horses are running in a race. I bet that Hot Shot will win first place, and Urawinner will win second. What is the probability that I will win?
Do students tend to improve their SAT Mathematics (SAT-M) score the second time they take the test? A random sample of four students who took the test twice received the following scores
Use the critical values for z of 1.65 and a p level of approximately 0.10, or 10%. For each of the following values, determine if you would reject or fail to reject the null hypothesis:
A production process is known to produce a particular item in such a way that 5 percent of these are defective. If two items are randomly selected as they come off the production line
Explain which data techniques you are most familiar with/have used: in a previously done project that involved the collection and analysis of data and explain why the examination of collected data is so important.
Three automobiles are selected at random, and each is categorized as having a diesel (S) or a nondiesel (F) engine (so outcome are SSS,SSF,ect.) If X= the number of cars among the three with diesel engines, list each outcome in S and its associate..
LINEAR PROGRAMMING MODELS
The club professional at a difficult public course boasts that his course is so tough that the average golfer loses a dozen or more golf balls during a round of golf.
What is the probability of the person is 20 to 24 years old.What is the probability of the person is 20 to 34 years old.
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