{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

chap10A

# Thatisthenullhypothesisisrejectedfortteststatisticvalu

This preview shows page 1. Sign up to view the full content.

This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: h. PDF of t ( n − 1 ) f(t) area = p-value 0 t-statistic t To find a p‐value the Appendix Table of the t‐distribution does not give enough detail to get any accuracy. Therefore, the calculation of an exact p‐value requires special purpose statistical computing. The p‐value illustrated above can be calculated with Microsoft Excel with the function: TDIST(t‐statistic, degrees_of_freedom, 1) ↑ one-sided alternative 13 Chapter 10 Other forms of the alternative hypothesis have meaningful application. A problem may suggest testing the null hypothesis: H0 : μ ≥ a or H0 : μ = a against the alternative hypothesis: H1 : μ < a The test procedure uses the same test statistic as given in previous discussion – but the calculation of the p‐value is different. From the data set, calculate the sample mean x and sample variance s 2 . From these results, calculate the t‐test statistic: t= 14 x−a s n Chapter 10 For a significance level α , the decision rule is to reject the null hypothesis H0 if: t < − tc where t c is...
View Full Document

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern