STA 2014 Week 10 Individual Work Solution Correct Answers

Week 10 individual work answers for a statistics course.

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STA 2014 Week 10 Individual WorkSolution Correct AnswersStatisticsSTA 2014Week 10 Individual WorkAssignment InstructionsTo complete this assignment:1.Answer all of the questions below in the space provided.2.Reflect on the informationpresented in this week’s lesson and provide an insightful response toeach question.Save and Submit to Dropbox1.Save your work as a Microsoft Word 2010 (.docx) file that includes your name, course code, andtitle in the file name. For example: JaneSmith_STA2014_Week10.docx.2.To submit your assignment, go to the Dropbox and click "Submit Assignment."3.Click on the drop-down menu to select theWeek 10: Individual Workbasket in the Dropbox.Objective:Use confidence intervals appropriately.Section 9.122. You Explain It! Superstition:A USA Today/Gallup poll asked1,006 adult Americans how muchit wouldbother them to stay in a room on the 13thfloor of a hotel. Interestingly, 13%said it wouldbother them. The margin of error was 3 percentagepoints with 95% confidence. Which of thefollowing represents a reasonable interpretation of the survey results? For those not reasonable,explain theflaw.(a) We are 95% confident that the proportion of adult Americans who would be bothered to stay ina room on the 13thfloor is between 0.10 and 0.16.Answer:(b) We are between 92% and 98% confident that 13% ofadult Americans would be bothered tostay in a room on the 13thfloor.Answer:(c) In 95% of samples of adult Americans, the proportion who would be bothered to stay in a roomon the 13thfloor is between 0.10 and 0.16.Answer:(d) We are 95%confident that 13% of adult Americans would be bothered to stay in a room on the13thfloor.Answer:Section 9.28. (a)Find the t-value such that the area in the right tail is 0.02 with 19 degrees of freedom.Answer:(b) Find the t-value suchthat the area in the right tail is 0.10 with 32 degrees of freedom.Answer:(c)Find thet-value such that the area left of thet-value is 0.05with 6 degrees of freedom.[Hint:Use symmetry.]Answer:

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