@pFF??kDy 0???221 ...-Sav. Q- tps Home Insert Design Layout References Mailings

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@pFF??kDy 0???221 ...-Sav. Q- tps Home Insert Design Layout References Mailings Review View Office Update To keep up-to-date with security updates, fixes, and improvements, choose Check tollow the instructions. This assignment is due by 11:59 p.m. Sunday, July 8. Submit your assignment online on Blackboard. Go to "Assignments-Sunday". C Assignment sy to upload your file. Name your file such as "econ221hw5 lastna upload the file Review the following materials. A. B. C. Course Packet: Part V D-F, pages 101- 140. Textbook: Chapter 8 (8.1,8.2), pages 335-352; Chapter 9 (9.1-9.3), pages . Weeks 5-7 lecture videos on Blackboard. Similar questions in assignments 6 and 7 from Spring 2018 on the "Assignme page. D. Read "Assignments" policies under "COURSE POLICIES" on page ii of the course sy E. Read "Style Requirements for Homework Assignments" In Assignment 1. 1. (8 points) This question is similar to Exercise 11-12 on page 350 of your textbook. Let t be a t-random variable. a. b. c, d. e. f. g. h. P(t > a) 0.05 and 15 degrees of freedom. Find a. P(t

Explanation / Answer

Ans 1)

P(t>a)=0.05 for dF=15

Go to t table and check for the column under one tailed test with significance of 0.05 and check row for 15th value tht is dF row

We get P(t>1.7321)=0.05 hence a=1.7321

Ans b)

P(t<a)=0.025 and dF=18 again using same method we have a=2.101

We need just the critical value of t at given significance we can ignore inequality sign

Ans 4)

Here e need to find the significance level for P(t>2.16) and dF=13 we get significance level equals to 0.025 for one tail test and 0.05 for 2 tailed test

ANs 5)

It is for two tailed test hene we will use two tailed significance level and check for 1.725 at df=20 we get P(-1.725<t<1.725)=0.1

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