Problem 2 (20 pts). Hypothesis testing - Imagine a study designed to test whether daughters resemble...

60.1K

Verified Solution

Question

Statistics

Problem 2 (20 pts). Hypothesis testing - Imagine a studydesigned to test whether daughters resemble their fathers. In eachtrial of the study, a participant examines a photo of one girl andphotos of two adult men, one of whom is girl's father. Theparticipant must guess is the father. If there is nodaughter-father resemblance, then the probability that theparticipant guesses correctly is only 1/2. Possible-meaningfulhypotheses are: Ho: Participants pick the father correctly half thetime HA: Participants pick the father correctly more frequentlythan half the time. (a) Assume that 13 out of 18 participantscorrectly guessed the father of the daughter. Test the nullhypothesis Ho. Calculate the P-value and compare it with thestandard significance level (a = 0.05). Will you reject Ho? (b)Assume that 12 out of 18 were correct. Will you reject Ho? (C)Assume that 12 x 2 = 24 out of 18 x 2 = 36 were correct. Will youreject Ho? (d) How/why are your answers in (b) and (c) different?Caution: Examine carefully if this is a one-sided or two-sidedtest.

Answer & Explanation Solved by verified expert
4.1 Ratings (746 Votes)
This is a onesided test a The hypothesis being tested is Ho Participants pick the father correctly half the time HA Participants pick the father correctly more frequently than half the time The output is Observed Hypothesized 07222 05 p as decimal 1318    See Answer
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students