"When she was 9 years old, a girl conducted a science fair experiment to test if professional touch therapists could sense her energy field. She flipped a coin to select either her right hand or her left hand, then asked the therapists to identify the selected hand by placing their hand just under hers without seeing or touching it. Among the 274 trials, the touch therapists were correct 121 times.

Use a 0.10 significance level to test the claim that touch therapists use a method equivalent to random guesses. Do the results suggest that touch therapists are effective?"

Question

"When she was 9 years old, a girl conducted a science fair experiment to test if professional touch therapists could sense her energy field. She flipped a coin to select either her right hand or her left hand, then asked the therapists to identify the selected hand by placing their hand just under hers without seeing or touching it. Among the 274 trials, the touch therapists were correct 121 times.

Use a 0.10 significance level to test the claim that touch therapists use a method equivalent to random guesses. Do the results suggest that touch therapists are effective?"

StudyXY · Accepted Answer

I'll solve this hypothesis testing problem step by step using the appropriate statistical approach. : Define the Hypotheses : Calculate Test Statistic : Determine Critical Region : Compare Test Statistic to Critical Values : Calculate p-value The results indicate the therapists may have some ability beyond chance.

Q
QuestionStatistics

Answer

Full Solution Locked

Step 1
I'll solve this hypothesis testing problem step by step using the appropriate statistical approach.

Step 2
: Define the Hypotheses

Final Answer

Need Help with Homework?

Related Questions

Company

Explore

Study Tools

QQuestionStatistics

AnswerHelpful