Match the canario te the appropriate signiscanoe test. For each scenario indcate

Question

Match the canario te the appropriate signiscanoe test. For each scenario indcate the investigate whether a power plant is within 50 water regulation of water temperatue. samples are taken at andomly selected times mom a drainage pipe that leads to a river The water produced from the plant is used for cooling and should be less than 150 degrees Fahrenheit. The sample yields a sample mean 157 degrees and sample standard deviation of 145 degrees. Which procedure should be used in order to test whether the power plant is within regulation temperature? Researchers would like to analyze whether [Choose I there is a relationship between IQ score and annual salary for American workers What type procedure would you suggest they perform? Oregon State University would like to know Choose whether the proportion of students that park a vehicle on campus is greater than 50 They take a simple random sample of 1000 students and ask whether they park a vehicle on campus. What type of test should the university use to test their claim of 50%? hypnotherapist would ke to see (Choose subjects increase their speed and accuracy during a particular test while under hypnosis For each subject they take a specific test once under hypnosis and once notunder hypnosis. The order in which subjects take the test is randomized for each subject For each test they are timed to see how longittakes them toget through the test What procedure should be used to test whether the average difference time between the tests is other than zero? An activity phone app would like to test the average number of calories burmed fom a I Choose l 60 minute tennis match. Currently, the app claims an average of 560 calories for a person weighing 150bs They assume the number of calories burned comes from a normal distribution with a population standard deviation of 100 calones, ifthey take a sample of 100 people (all weighing approximately 150bs), what type of test should they use to test their claim of 560 calories? options Matched pairs one-Sampt t for Linear regrasion

Explanation / Answer

If the standard deviation of population is known and the sample size is not small then we use z-test, otherwise we use t-test. When two conditions are applied on either the same individual then we use the matched pairs test. When we are required to predict the effect of one variable on another we do the regression analysis.

1 . One sample t-test for mean

2. Linear Regression analysis

3. One sample z-test for proportion

4. Matched pairs t-test

5. One sample z-test

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