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For # 39-45: A researcher would like to determine whether Model A for shoe orthotics or Model B for shoe orthotics is better at reducing foot pain in an elderly population. He draws a sample of 8 people from a podiatry practice to try out both models in a repeated-measures design. The participants will wear each model of show orthotics for 8 hours during a day and then rate their pain. The dependent variable is pain rating on a scale of 1-10, with 1 being no pain and 10 being excruciating pain. The data in are as follows: (Show all work and at each step, round all calculations to two decimals) Pain Pain Level Level After After Model Model B 2 A83553 458 А 9 4 4 2 1 2 1 1 D scores [D= D² [D² = ED n SS=[D²-(D)2/n variance of D=5² Mp= SM₂ n = t = MD / SMD. SS 39. In statistical notation, what is your null hypothesis? 40. In statistical notation, what is your alternative hypothesis? 41. How many df do you have in this Repeated-Measures design?

For # 39-45: A researcher would like to determine whether Model A for shoe orthotics or Model B for shoe orthotics is better at reducing foot pain in an elderly population. He draws a sample of 8 people from a podiatry practice to try out both models in a repeated-measures design. The participants will wear each model of show orthotics for 8 hours during a day and then rate their pain. The dependent variable is pain rating on a scale of 1-10, with 1 being no pain and 10 being excruciating pain. The data in are as follows: (Show all work and at each step, round all calculations to two decimals) Pain Pain Level Level After After Model Model B 2 A83553 458 А 9 4 4 2 1 2 1 1 D scores [D= D² [D² = ED n SS=[D²-(D)2/n variance of D=5² Mp= SM₂ n = t = MD / SMD. SS 39. In statistical notation, what is your null hypothesis? 40. In statistical notation, what is your alternative hypothesis? 41. How many df do you have in this Repeated-Measures design?

Ciccarelli: Psychology_5 (5th Edition)
Ciccarelli: Psychology_5 (5th Edition)
5th Edition
ISBN:9780134477961
Author:Saundra K. Ciccarelli, J. Noland White
Publisher:Saundra K. Ciccarelli, J. Noland White
Chapter1: The Science Of Psychology
Section: Chapter Questions
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Mailings Review View Pain Level After Model A For #39-45: A researcher would like to determine whether Model A for shoe orthotics or Model B for shoe orthotics is better at reducing foot pain in an elderly population. He draws a sample of 8 people from a podiatry practice to try out both models in a repeated-measures design. The participants will wear each model of show orthotics for 8 hours during a day and then rate their pain. The dependent variable is pain rating on a scale of 1-10, with 1 being no pain and 10 being excruciating pain. The data in are as follows: (Show all work and at each step, round all calculations to two decimals) ∞mo SMJ in X 8 3 9 5 3 4 5 Help Pain Level After Model B 2 4 4 2 1 2 1 1 D scores {D = Tell me what you want to do D² [D² = MD Search = SM₂ SS=[D² - (D)²/n S'S variance of D-s² df ΣD - t = MD / SMD. 39. In statistical notation, what is your null hypothesis? 40. In statistical notation, what is your alternative hypothesis? 41. How many df do you have in this Repeated-Measures design? 42. What is the variance of your D scores? 43. What is your t-statistic? 44. Using two tails, an alpha level of .05 and your df what is your texitical? 45. Do the t-test. What is your decision? Reject Ho or Fail to Reject Ho 8 W
Transcribed Image Text:Mailings Review View Pain Level After Model A For #39-45: A researcher would like to determine whether Model A for shoe orthotics or Model B for shoe orthotics is better at reducing foot pain in an elderly population. He draws a sample of 8 people from a podiatry practice to try out both models in a repeated-measures design. The participants will wear each model of show orthotics for 8 hours during a day and then rate their pain. The dependent variable is pain rating on a scale of 1-10, with 1 being no pain and 10 being excruciating pain. The data in are as follows: (Show all work and at each step, round all calculations to two decimals) ∞mo SMJ in X 8 3 9 5 3 4 5 Help Pain Level After Model B 2 4 4 2 1 2 1 1 D scores {D = Tell me what you want to do D² [D² = MD Search = SM₂ SS=[D² - (D)²/n S'S variance of D-s² df ΣD - t = MD / SMD. 39. In statistical notation, what is your null hypothesis? 40. In statistical notation, what is your alternative hypothesis? 41. How many df do you have in this Repeated-Measures design? 42. What is the variance of your D scores? 43. What is your t-statistic? 44. Using two tails, an alpha level of .05 and your df what is your texitical? 45. Do the t-test. What is your decision? Reject Ho or Fail to Reject Ho 8 W
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