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1.0/ 1.0 PointsQuestion 1 of 20Click to see additional instructionsAn urban economist is curious if the distribution in where Oregon residents live is different today than it was in1990. She observes that today there are approximately 3,109 thousand residents in NW Oregon, 902 thousandresidents in SW Oregon, 244 thousand in Central Oregon, and 102 thousand in Eastern Oregon. She knows that in1990 the breakdown was as follows: 72.7% NW Oregon, 20.7% SW Oregon, 4.8% Central Oregon, and 2.8%Eastern Oregon.Can she conclude that the distribution in residence is different today at a 0.05 level of significance?Enter the test statistic - round to 4 decimal places.Week 8 Knowledge Check Homework Practice QuestionsReturn to Assessment ListPart 1 of 4 - Chi-Square Test for Homogeneity5.0/ 8.0 Points
Question 2 of 20MATH302 I008 Win 20Tests & QuizzesTests & QuizzesYou can access the new Success Center via the left hand navigation in your classrooms. This tool is updatedregularly and provides access to hundreds of relevant resources geared towards your academic and professionalgoals. Check it out!
1.0/ 1.0 Points1.0/ 1.0 PointsClick to see additional instructionsA company manager believes that a person’s ability to be a leader is directly correlated to their zodiac sign. Henever selects someone to chair a committee without first evaluating their zodiac sign. An irate employee sets out toprove her manager wrong. She claims that if zodiac sign truly makes a difference in leadership, then a randomsample of 210 CEO’s in our country would reveal a difference in zodiac sign distribution. She finds the followingzodiac signs for her random sample of 210 CEO’s:BirthsSigns25Aries13Taurus17Gemini21Cancer16Leo18Virgo15Libra16Scorpio20SagittariusClick to see additional instructionsA college professor is curious if the location of a seat in class affects grades in the class. They are teaching in alecture hall with 240 students. The lecture hall has 10 rows, so they split the rows into 5 sections – Rows 1-2,Rows 3-4, Rows 5-6, Rows 7-8, and Rows 9-10. At the end of the course, they determine the top 25% of gradesin the class, and if the location of the seat makes no difference, they would expect that these top 25% of studentswould be equally dispersed throughout the classroom. Their observations are recorded below. Run a Goodness ofFit test to determine whether or not location has an impact on the grade. Let α=0.05.Enter the expected count for each section in the table below. Enter whole numbers without any decimals.Rows 1-2Rows 3-4Rows 5-6Rows 7-8Rows 9-10# in Top 25%148131015Expected Counts1212121212
Question 3 of 20Click to see additional instructionsA company manager believes that a person’s ability to be a leader is directly correlated to their zodiac sign. Henever selects someone to chair a committee without first evaluating their zodiac sign. An irate employee sets out toprove her manager wrong. She claims that if zodiac sign truly makes a difference in leadership, then a randomsample of 210 CEO’s in our country would reveal a difference in zodiac sign distribution. She finds the followingzodiac signs for her random sample of 210 CEO’s:BirthsSigns25Aries13Taurus17Gemini21Cancer16Leo18Virgo15Libra16Scorpio20Sagittarius
1.0/ 1.0 Points11Capricorn23Aquarius15PiscesCan she conclude that zodiac sign makes a difference in whether or not a person makes a good leader?

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