In the independent measures t-test, what is assumed by the homogeneity of variance assumption? a.           The two samples have equal variances. b.           The two sample variances are not equal. c.           The two populations have equal variances. d.           The two population variances are not equal.

Q: (a) Use the 0.02 level of significance to test the hypothesis whether it is reasonable to assume…

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Q: what is the sample variance and estimated standard error for the following sample? n=16 with ss=540

A: The sample size is 16, and sum of squares is 540. The sample variance is, s2=SSn-1=54016-1=54015=36…

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Q: 1. Calculate SS, variance, and standard deviation for the following sample of n=4 scores: 3, 1, 1, 1

A: We will answer the first question as we don't answer multiple questions at a time. Please resubmit…

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Q: Calculate SS, variance, and standard deviation for the following population of N = 5 scores: 2, 13,…

A: The SS can be calculated as: SS=∑i=1n(Xi-x¯)2      x¯= 2+13+4+10+65        = 7SS  = (2-7)2+ (13-7)2+…

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Q: An independent-measures study produces sample means of M1 = 20 and M2 = 17. If both samples have n =…

A: An independent-measures study produces sample means of M1 = 20 and M2 = 17. Cohen’s d = 0.50

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Q: 3. When 25 samples are drawn with replacement Y 1 2 Ply) 1/2 1/6 3 1/3

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A: The given sample data is as follows: M1 = 15, M2 = 25, SS1 = 90, and SS2 = 70. The value of M1 is…

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Q: An independent-measures study produced sample mean of M1 = 20 and M2 = 17.  If both samples have n=…

A: Given M1=20, M2=17 and Cohen's d=50.   It is known that      where  sp2 is the pooled variance.

Q: Calculate the standard deviation and variance of the sample data shown, to two decimal places x 1.4…

A: Sample standard deviation: 1.4 1.96 1.3 1.69 21.3 453.69 4.2 17.64 1.9 3.61 15.2…

Q: The symbol for samples variance is s.  a. True  b. False

A:

Q: An independent-measures study produces sample means of M1 = 20 and M2 = 17. If both samples have n =…

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Q: When calculating an independent-samples t test, the pooled variance is:

A: Given: Independent sample t-test.

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Q: If an analysis of variance is used for the following data, what would be the effect of changing the…

A: Given: M1=10M2=15SS1=90SS2=70 Changing the value of M2 to 20

Q: What is the sample variance of the difference scores s0? O 108.56 109.56 O 111.56 O 101.56 D…

A: Given that Sample size n = 10 Sample mean difference = 8.4 SSD = 1004

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Q: Given below are the analysis of variance results from a Minitab display. Assume that you want to use…

A: In this case, we need to identify the test statistic value.

Q: In an industrial experiment, a job was performed by 10 workers using Method I, and by 7 workers…

A: Given n1=10,  x̄1=17, s21=26  n2=7, x̄2=9, s22=7, level of significance ɑ=0.05