Question
Homework: Homework 8 Chapter 9 online part HW Score: 18.065%, 325 tot 18 pt Score: 0 of 5 pts 5 of 64 complete) 9.2.18-T Question Heep Therapeutic touch ITT) practitioners claim to perceive an energy ield above a patients skin To test this claim a TT Praettioner was bindHolded and he researcher placed her hand ower ether the right or left hand of the practitioner Let p denote the probabilty of a comect prediction by a TT practisoner. An experiment used 13 TT ptactaioners who had to predict the correct hand in each of trials. Complete parts a through p probabilty of corect guess F-average number of correct guesses ie standard deviation of connect guesses Set up the hypotheses for the hypothesis test Hai 0.50 p 050 Cype integers or decimals. Do not round) The 143 trials had 82 conect guesses. Find and ireerpret the test statistic select the correct choice below md fil inthe answer box to complete your choice D two decimal places A The test stwissc is z which represents the number of standard emors that the estiuate fals from the nul hypothesis value O B The test statistic is z which represents the difference between the sample estimate and the mal hypothesis vain
Explanation / Answer
b) The statistical software output for this problem is:
One sample proportion hypothesis test:
p : Proportion of successes
H0 : p = 0.5
HA : p > 0.5
Hypothesis test results:
0.0395
So,
A. The test statistic is z = 1.76, which represents the number of standard errors that the estimate falls from the null hypothesis value.
Proportion Count Total Sample Prop. Std. Err. Z-Stat P-value p 82 143 0.57342657 0.041812101 1.7561082
0.0395
