Use t test for dependent means and independent means

Assignment Help Basic Statistics

Reference no: EM13114567

For each of the following studies, say whether you would use a t test for dependent means or a t test for independent means.

(a) A researcher measures the heights of 40 university students who are the firstborn in their families and compares the 15 who come from large families to the 25 who come from smaller families.

(b) A researcher tests performance on a math skills test of each of 250 individuals before and after they complete a one-day seminar on managing test anxiety.

(c) A researcher compares the resting heart rate of 15 individuals who have been taking a particular drug to the resting heart rate of 48 other individuals who have not been taking the drug.

Reference no: EM13114567

Questions Cloud

Provide a possible explanation : Provide a possible explanation as to why this test identifies the presence of cytochrome c oxidase and not the other electron carries.

Compare and contrast how quality new products : Compare and contrast how quality new products/services are likely to be developed at a McDonald's versus a bank in your neighborhood.

Project probability with variance : A project has an expected duration of 34 weeks with a critical path variance of 6. Suppose the project network is given and the critical path is identified on the network. Suppose the normal time, crash time, and the associated cost for each activ..

What controls should an organization : What controls should an organization like Tyco implement to ensure that such transactions do not take place in the future?

Use t test for dependent means and independent means : For each of the following studies, say whether you would use a t test for dependent means or a t test for independent means.

How many kilograms of methane is present : How many kilograms of methane (CH4) are in perfectly insulated piston with the following properties: Volume = 2 cubic meters.

Describe the unwinding process or the synthesis : A piece of DNA has unwound and the ends of the two strands have begun separating for replication. Describe, in full detail, the discontinuous synthesis of the lagging strand.

Difference between data and information : Explain the difference between data and information. What is the difference between a population and a sample? List the different types of charts available in Excel, and explain characteristics of data sets that make each chart most appropriate to ..

Explain what is the relationship between a firm''s customers : Explain What is the relationship between a firm's customers and its business-level strategy in terms of who, what, and how

User Account

All Pages