# The iv is nap therapy for narcoleptics before vs

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The IV is nap therapy for narcoleptics (before vs. after treatment); the DV is unplanned naps the following week (had vs. did not have an unplanned nap). Inappropriate. There are too many variables in the study.
3 Suppose we wanted to test the hypothesis that a control group of cancer patients (Group 1) would report higher mean pain ratings than an experimental group receiving special massage treatments (Group 2). Using the following information, the computed t statistic for independent groups is t=3.54 M 1 = 78.50 SD 1 2 = 42.10 n 1 =25 M 2 = 72.10 SD 2 2 = 39.70 n 2 =25 : 1
b) Using α = .05 for a two-tailed test, is this t
c) Write one or two sentences that could be used to report the results obtained for the t -test in question A3.
4 For question 3, assume that the pooled SD for the two groups is 7.05. Calculate the value of d.
5 For each of the following t values, indicate whether the t is statistically significant for a two- tailed test, at the specified alpha: a. t = 2.40, df = 25, α = .01 no b. t = 2.40, df
c. t = 5.52, df = 10, α = .01yes d. t = 2.02, df = 150, α= .05no 6 State the critical (tabled) value of t that would be used to reject the null hypothesis of equality of population means, for an independent groups t -test under each of the following conditions: b. H1: μ1 > μ2; n 1 = 30, n
c. H1: μ1 ≠ μ2; n 1 = 10, n 2 = 10; α = .01 +/-2.88 d. H1: μ1 > μ2; n 1 = 60, n 2 = 60; α = .05 one tail >1.66