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Presentation1

  1. 1. Todd Garey Individual Presentation
  2. 2.  WHOP, a local television station, has been receiving an unusually large number of complaints from viewers and advertisers  Most complaints are objection to the level of violence on WHOP programs  A survey was conducted where 200 phone calls were made and 94 people participated in the study  WHOP is interested in determining whether age influences the perception of violence
  3. 3. 0 1 2 3 4 5 6 7 8 9 10 20 or younger 21-30 31-40 41-50 50 or older Sum of much too violent Sum of somewhat too violent Sum of violent Sum of a little violent Sum of not very violent
  4. 4.  Younger (30 years or younger)  Sample mean = 7.67  STDEV = 2.08  Sample Size = 3  Older (31 years or older)  Sample mean = 15.33  STDEV = 4.51  Sample Size = 3  Pooled sample stdev = 3.512  std error = 2.867
  5. 5.  Does age effect the perception of violence?  Null : Age does NOT effect the perception of violence  Alternative : Age does effect the perception of violence  One-tailed or two-tailed?  One-tailed  Type of test?  T-test
  6. 6. Test statistic (obs) = (2.674) Critical measure = 2.132 |obs| > critical - Yes Degrees of freedom = 4 P-value = .028 A-value = .050 p-value < a-level - Yes
  7. 7.  We should reject the null because the absolute value of the test statistics are greater than the critical measure  Age does effect the perception of violence
  8. 8. Questions?

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