A sample of n = 4 scores was collected from a population with unknown parameters. Scores: 1, 4, 6, 1. A. What is the mean of the sample? B. What is the sum of squares, SS? C. What is the sample variance, s2? D. What is the estimated standard error of the mean, sM?
A single sample of n=9 scores has SS=72. What is the estimated standard error for the sample? 1 3 9 cannot answer without knowing the sample mean
Question 6 2 pts For a two-tailed hypothesis test with a = .05 and a sample of n = 25 scores, the boundaries for the critical region are t = +2.060. O False o True
The sum of the squared deviation scores is SS = 60 for a sample of n = 5 scores. What is the variance for this sample?
A population of N = 10 scores has a mean of μ = 24 with SS = 160, a variance of σ2 = 16, and a standard deviation of σ = 4. For this population, what is Σ(X − μ)? A. 0. B. 4. C. 16. D. 160
A repeated-measures study comparing two treatments with a sample of n = 4 participants produces a Mp = 4 with SS = 12 for the difference scores. What is the estimated standard error for the sample mean difference? 4 3 2.
one sample has ss=36 and a second sample has ss=18 If n=4 for both samples, find each of the sample variances and compute the pooled variance. Because the samples are the same size, you should find that the pooled variance is exactly halfway between the two sample variances. The first sample has ________ (choose one of the following 12.00, 9.00, 6.00, 3.00), and the second has s^2=______((choose one of the folloeing 12.00, 6.00, 3.00, 4.50). The pooled variance is s^2p=________(9.00,...
A sample of n = 4 scores has SX = 8 and SX2 = 40. What is the value of SS for this sample?
estion 15 2 points Save Answer A sample of n 25 scores has SS 42. If these same scores were a population, then the SS value for the population would be ○ a. 14 O b. 34 O c. 42 O d. 81 « くQuestion 15 of 20 > » Moving to another question will save this response. Close Window
The following sample of n = 4 scores was obtained from a population with unknown parameters. Scores: 2, 2, 6, 2 Compute the sample mean and standard deviation. Note: These are descriptive values that summarize the sample data. (Round your answers to two decimal places.) M = S = Compute the estimated standard error for M. (Note: This is an inferential value that describes how accurately the sample mean represents the unknown population mean.) SM =