Using GPOWER software calculate the estimated sample size needed…
Question Answered step-by-step Using GPOWER software calculate the estimated sample size needed… Using GPOWER software calculate the estimated sample size needed when given these factors: A Priori Power Analysis Download the G*Power software provided, and then use the software to submit the following:Part ICalculate the estimated sample size needed when given these factors:one-tailed t-test with two independent groups of equal sizesmall effect size (see Piasta, S.B., & Justice, L.M., 2010)alpha =.05beta = .2 (Reminder: Power = 1 – beta)Part IIAssume that the result is a sample size beyond what you can obtain. Use the compromise function to compute alpha and beta for a sample half the size.Indicate the resulting alpha and beta.Analyze the result and decide if the study should be conducted with smaller sample size. Explain your rationale.In the context of Type I and Type II errors.Include a visual of the G* Power output matrix. Answers:Part I is shown in the screenshot below.Image transcription textG.Power File Edit Tests Window Help 0: 19 8 70 9 8 0 Sun May 1 5:19 PM ACHEG*Power 3.1 Central and n… Show more… Show morePart II is shown in the screenshot below.Image transcription textG.Power File Edit Tests Window Help (18 7 0 Q 2 0 Sun May 1 3:30 PM ACHEG*Power 3.1 Central and … Show more… Show moreQuestion #1: Alpha = 0.0447870, Beta =0.7165917 (as shown in screenshot Part II)Question #2: The analysis indicates it shouldn’t be conducted with smaller sample size, given that the power is reduced to 0.2834083. If we increase the sample size to medium (0.50) power increases to 0.7445146 and large sample size (0.80) respectively power increases to 0.9545568.Question #3: In the context of Type I error (alpha 0.447870) I, would reject the null hypothesis in favor of the false alternative hypothesis Type II error (Beta 0.7165917).Question #4: See screenshot Part II. Math Statistics and Probability BUS 7320V4 Share QuestionEmailCopy link Comments (0)
