In a two-tailed F-test about equality of two population variances, given n1=21, S21 = 8.2, n2=26,S22=...
In a two-tailed F-test about equality of two population variances, given n1=21, S21 = 8.2, n2=26,S22= 4.0, and alpha = 0.05.
The numerator and denominator degrees of freedom for the F distribution, respectively, are:
The computed value of the test statistic, F, is:
The critical value of F, from F chart or using MS Excel, is:
The p-value, from F chart or using MS Excel, is:
The conclusion is to reject H0. True or False?
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In a two-tailed F-test about equality of two population
variances, given n1=21, S21 = 8.2,
n2=26,S22=...
In a two-tailed F-test about equality of two population variances, given n1=21, S21 = 8.2, n2=26,...
In a two-tailed F-test about equality of two population variances, given n1=21, S21 = 8.2, n2=26, S22= 4.0, and alpha = 0.05. The numerator and denominator degrees of freedom for the F distribution, respectively, are A. 21 and 26 B. 26 and 21 C. 20 and 25 D. 27 and 22
Finding F critical for Variances Use the F-distribution to find the degrees of freedon for the numerator (d.f.N.), the degrees of freedom for the Denominator (d.f.D.) and the critical F-value Use the...
Finding F critical for Variances Use the F-distribution to find the degrees of freedon for the numerator (d.f.N.), the degrees of freedom for the Denominator (d.f.D.) and the critical F-value Use the closest value when looking up the d.f.N. and d.f.D. in the tables. Test alpha α Sample 1 Sample 2 d.f.N. d.f.D. F critical Right 0.01 s12=37 n1=14 s22=89 n2=25 Two-tailed 0.10 s12=164 n1=21 s22=53 n2=17 Right 0.05 s12=92.8 n1=11 s22=43.6 n2=11
Given the following information: n1=31 , s21=0.489, n2=7, s22=1.797, Ha: σ21≠σ22, α=0.05 Step 1 of 2...
Given the following information: n1=31 , s21=0.489, n2=7, s22=1.797, Ha: σ21≠σ22, α=0.05 Step 1 of 2 : Determine the critical value(s) of the test statistic. If the test is two-tailed, separate the values with a comma. Round your answer(s) to four decimal places. step 2 of 2: Make a decision. A. reject null hypothesis B. Fail to reject null hypothesis
Do a two-sample test for equality of means assuming unequal variances. Calculate the p-value using Excel....
Do a two-sample test for equality of means assuming unequal variances. Calculate the p-value using Excel. (a-1) Comparison of GPA for randomly chosen college juniors and seniors: x⎯⎯1x1 = 4.75, s1 = .20, n1 = 15, x⎯⎯2x2 = 5.18, s2 = .30, n2 = 15, α = .025, left-tailed test. (Negative values should be indicated by a minus sign. Round down your d.f. answer to the nearest whole number and other answers to 4 decimal places. Do not use "quick"...
Do a two-sample test for equality of means assuming unequal variances. Calculate the p-value using Excel....
Do a two-sample test for equality of means assuming unequal variances. Calculate the p-value using Excel. (a-1) Comparison of GPA for randomly chosen college juniors and seniors: x⎯⎯1x1 = 4.75, s1 = .20, n1 = 15, x⎯⎯2x2 = 5.18, s2 = .30, n2 = 15, α = .025, left-tailed test. (Negative values should be indicated by a minus sign. Round down your d.f. answer to the nearest whole number and other answers to 4 decimal places. Do not use "quick"...
Do a two-sample test for equality of means assuming unequal variances. Calculate the p-value using Excel....
Do a two-sample test for equality of means assuming unequal variances. Calculate the p-value using Excel. (a-1) Comparison of GPA for randomly chosen college juniors and seniors: x⎯⎯1x1 = 4.75, s1 = .20, n1 = 15, x⎯⎯2x2 = 5.18, s2 = .30, n2 = 15, α = .025, left-tailed test. (Negative values should be indicated by a minus sign. Round down your d.f. answer to the nearest whole number and other answers to 4 decimal places. Do not use "quick"...
Do a two-sample test for equality of means assuming unequal variances. Calculate the p-value using Excel....
Do a two-sample test for equality of means assuming unequal variances. Calculate the p-value using Excel. (a-1) Comparison of GPA for randomly chosen college juniors and seniors: x⎯⎯1 = 4, s1 = .20, n1 = 15, x⎯⎯2 = 4.25, s2 = .30, n2 = 15, α = .025, left-tailed test. (Negative values should be indicated by a minus sign. Round down your d.f. answer to the nearest whole number and other answers to 4 decimal places. Do not use "quick"...
Do a two-sample test for equality of means assuming unequal variances. Calculate the p-value using Excel....
Do a two-sample test for equality of means assuming unequal variances. Calculate the p-value using Excel. (a-1) Comparison of GPA for randomly chosen college juniors and seniors: x⎯⎯1 = 4, s1 = .20, n1 = 15, x⎯⎯2 = 4.25, s2 = .30, n2 = 15, α = .025, left-tailed test. (Negative values should be indicated by a minus sign. Round down your d.f. answer to the nearest whole number and other answers to 4 decimal places. Do not use "quick"...
When conducting a one-tailed test for equality of means, when n1 = 54 n2 = 38...
When conducting a one-tailed test for equality of means, when n1
= 54 n2 = 38 and a = 0.05, what is the t-critical value
QUESTION 4 A financial analyst asked the following qu uestion: e average earnings yield of manufacturing c ra ngs of retailing companies? manufacturing companies the same as the ave ed 19 manufacturing companies and 24 To examine this question, the analyst ra The descriptive statis e statistics from each sample of companies a the population...
Do a two-sample test for equality of means assuming unequal variances. Calculate the p-value using Excel....
Do a two-sample test for equality of means assuming unequal variances. Calculate the p-value using Excel. (a-1) Comparison of GPA for randomly chosen college juniors and seniors: x⎯⎯1 = 4, s1 = .20, n1 = 15, x⎯⎯2 = 4.25, s2 = .30, n2 = 15, α = .025, left-tailed test. (Negative values should be indicated by a minus sign. Round down your d.f. answer to the nearest whole number and other answers to 4 decimal places. Do not use "quick"...
When conducting a one-tailed test for equality of means, when n1
= 54 n2 = 38 and a = 0.05, what is the t-critical value
QUESTION 4 A financial analyst asked the following qu uestion: e average earnings yield of manufacturing c ra ngs of retailing companies? manufacturing companies the same as the ave ed 19 manufacturing companies and 24 To examine this question, the analyst ra The descriptive statis e statistics from each sample of companies a the population...
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