If k = 3, df = 12, MSWithin = 45.33, n = 12, and alpha is set at .05, what is the value of Tukey's HSD?

A researcher wants to know whether children with ADHD tend to watch more TV than children who are not diagnosed with the disorder. To examine this, a researcher obtains a sample of n = 36 children (ages 8 to 12 years) who have been diagnosed with ADHD. Each child is asked to keep a journal recording how much time each day is spent watching TV. The average for the sample is M = 4.9 hours/day. Assume that the average TV-watching time for the general population of 8-to-12-year-old children is µ = 4.1 hours/day with σ = 1.8. Is ADHD in children associated with an increased amount of TV-watching?

T=5, T, = 10, T3 =15, with SS1 = 6, SS2=9, SS3 = 9, and EX² = 94. For this study, what is SSwithin?

For a population with ? = 100 and ? = 20, what is the X value corresponding to z = 1.50? 30115     101.5130

How often do you go out dancing? This question was asked by a professional survey group on behalf of the National Arts Survey. A random sample of n1 = 95 single men showed that r1 = 23 went out dancing occasionally. Another random sample of n2 = 92 single women showed that r2 = 19 went out dancing occasionally. Note: For degrees of freedom d.f. not in the Student's t table, use the closest d.f. that is smaller. In some situations, this choice of d.f. may increase the P-value a small amount and thereby produce a slightly more "conservative" answer. (a) Do these data indicate that the proportion of single men who go out dancing occasionally is higher than the proportion of single women who do so? Use a 5% level of significance. List the assumptions you made in solving this problem. Do you think these assumptions are realistic? What is the level of significance? What is the value of the sample test statistic? (Round your answer to three decimal places.)   (b) Compute a 90% confidence…

Which combination would lead you to Reject H₂? a = .05 p-value = .045 a = .01 p-value = .059 O a = .05 p-value = .059 O a = .01 p-value = .045

. The statistic of z = -1.94 is obtained when testing the claim that p = 3⁄8

A sample of n = 25 scores has a mean of M = 84. Please show all work and write out all formulas and math. Find the z-scores for this sample: a. If it was obtained from a population with μ = 80 and σ= 10. b. If it was obtained from a population with μ = 80 and σ = 20. c. If it was obtained from a population with u = 80 and σ = 40. d. What pattern did you see here in terms of your σ value, σM, and z?