I have been working on this set of questions for the past hour, I believe proble

Question

I have been working on this set of questions for the past hour, I believe problem 16 is B, problem 17 is B, and problem 18 is C. If someone could verify this I would apprectiate it!

For questions 16-18, suppose the sample was analyzed as suggested in the table below. 50 to 64 Total 180 210 150 540 18 to 29 30 to 49 65+ Seahawks Broncos No Preference Total 130 215 107 16. How many 18-29 year-olds in this survey would be expected to support the Seahawks if age and team support were independent? a) 88*540/180 = 264 b) (88/540)*(180/540)*540 29.333 c) 180 d) 88 e) None of the above 17. Can we use our chi-squared test for this data? a) No, because we expect a value of at least five in each box b) No, because we expect a value of less than five in some boxes. c) Yes, because we expect a value of at least 5 in each box d) Yes, because we expect a value of less than five in some boxes. 18. Assuming we can use the chi-squared distribution for this test, how many degrees of freedom would we have? a) 3b)4c) 6 d)12 e) none of these

Explanation / Answer

16. (b) (88 *180)/540 = 29.33

17. (c) Yes, because we expect a value of 5 in each box. ( lowest = 88 * 150/540 = 24.44)

18. (c) degress of freedom = ( no. of rows -1 ) * (no. of columns -1) = (3-1) * (4-1) = 6

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.