Homework 4.docx - Ryne Templeman Homework 4 9.10 9.26 9.42...

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Ryne TemplemanHomework 42/19/189.10, 9.26, 9.42, 9.50, 9.529.10a.T(4)=2.87 shows us that the degree of freedom is 4 and the value of the t statistic is 2.87. p=0.032 is saying that the value of p is 0.0329.26a.N=8, df=8-1=7. Critical Values at -1.895 and 1.895b.N=42, df=42-1=41. Critical Value at 1.684c.N=89, df=89-1=88. Critical Values at -2.633 and 2.633 This falls between 80 and 100 on the t-table in the book9.42a.We would use a single sample t-test, when we know the mean of the sample but do not know the standard deviationb.A null and research hypothesis (find out what the researchers are looking for), and get an actual number for the sample sizec.Volunteer sample. The information that was used was given by people does not representthe overall populationd.We really don’t have an idea of how many questions the participants answered, and some of the participants could also be males and didn’t answer the questions about the sun dresses. As researchers we cannot be sure of how big the actual sample size is.

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