Mean1 = 10, s21 = 4, N1 = 18; Mean2 = 8, s22 = 2, N2 = 20. What is the t value?

Hence the solution...
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
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?
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
For the repeated-measures t statistic, df = ________. a. n1 + n2 – 2 b. (n1 – 1) + (n2 – 1) c. n + 1 d. n1 + n2 – 1 e. n – 1
Both standard deviations are known and we determined
α
2
= 0.05. Now the degrees of freedom needs to be found to find the
corresponding t value from a table. The degrees of freedom
is calculated as follows where s1 is the sample
standard deviation for population 1, n1 is the
sample size from population 1, s2 is the sample
standard deviation for population 2, and n2 is
the sample size from population 2.
df =
s12
n1
+
s22...
Find a 95 percent confidence interval for the difference between means, where n1 = 50, n2 = 36, X1 = 80, X2 = 75, sı2 = 5, and s22 = 3. Assume unequal variances. Essay Toolbar navigation B 1 U s 를 들 를 А When we test Ho: M1 - u2 SO, HA: M1 – u2 >0, X1 = 15.4, X 2 = 14.5, si = 2, s2 = 2.28, n1 = 35, and n2 = 18 at a=.01,...
What is Vo if T1 has N2/N1 -2?What is Vo(t)?What is Vo/Vin?
A light falls on the sample with n1 = 1.653 and n2 = 2.35 × 10-2 (n = n1 + i n2), with a wavelength of 500 nm. Calculate the followings: a) the speed of light in the sample b) Wavelength of light in the sample c) The distance at which the wave intensity is reduced by half. d) Reflection coefficient of light from sample
Can I please get some help with this?? It's matlab.
Code 1 1) Define a function as [NE]- nb_elemt24( n1,n2). 2) Define two vectors A and B by randi(10, [1,n1]) and randi(10, [1,n2]), respectively. 3) Using the commend [C1,D1] hist(A, unique(A)) to find four vectors C1, D1 (for A) and C2, D2 (for B), respectively. Here, vector C1 shows how many times each element of A is repeated. And the elements of vector D1 are the same as elements of...
10. If we are doing two-sample hypothesis testing with related samples of sizes n1 = 10 and n2 = 10, what is the number of degrees of freedom? a. 9 b. 10 c. 19 d. 20 11. If we are doing two-sample hypothesis testing with independent samples of sizes n1 = 10 and n2 = 10, what is the number of degrees of freedom? a. 10 b. 18 c. 19 d. 20