Give a 99.8% confidence interval, for μ1−μ2μ1-μ2 given the following information.
n1=60n1=60, ¯x1=2.05x¯1=2.05, s1=0.61s1=0.61
n2=20n2=20, ¯x2=2.44x¯2=2.44, s2=0.48s2=0.48
±± Rounded to 2 decimal places.
Give a 99.8% confidence interval, for μ1−μ2μ1-μ2 given the following information. n1=60n1=60, ¯x1=2.05x¯1=2.05, s1=0.61s1=0.61 n2=20n2=20, ¯x2=2.44x¯2=2.44,...
Give a 95% confidence interval, for μ1−μ2μ1-μ2 given the following information. n1=45n1=45, ¯x1=2.67x¯1=2.67, s1=0.69s1=0.69 n2=20n2=20, ¯x2=2.8x¯2=2.8, s2=0.61s2=0.61 <μ1−μ2
a) Use the t-distribution to find a confidence interval for a difference in means μ1-μ2 given the relevant sample results. Give the best estimate for μ1-μ2, the margin of error, and the confidence interval. Assume the results come from random samples from populations that are approximately normally distributed. A 90% confidence interval for μ1-μ2 using the sample results x¯1=8.8, s1=2.7, n1=50 and x¯2=13.3, s2=6.0, n2=50 Enter the exact answer for the best estimate and round your answers for the margin...
| Give a 99% confidence interval, form-μ2 given the following information. nı = 50, n2 = 35, 22 2.34, si = 0.54 2.51, s2 = 0.89 tUse Technology Rounded to 2 decimal places. Hint Get help: Video Points possible: 1 License Unlimited attempts.
Consider the following hypothesis test. H0: μ1 − μ2 = 0 Ha: μ1 − μ2 ≠ 0 The following results are from independent samples taken from two populations. Sample 1 Sample 2 n1 = 35 n2 = 40 x1 = 13.6 x2 = 10.1 s1 = 5.9 s2 = 8.5 (a) What is the value of the test statistic? (Use x1 − x2. Round your answer to three decimal places.) (b) What is the degrees of freedom for the t...
Considering two Gaussian distributions N1~(μ1,σ1^2) and N2~(μ2,σ2^2), we pick two random variables x1 and x2 in order to compute the sum x3=x1+x2. We want to prove that: a) x3 follows a gaussian distribution b) estimate mean value μ3 and variance σ3^2 c) repeat the above steps for multivariate Gaussian distributions N1~(μ1,Σ1) and N2~(μ2,Σ2)
Question 9 Give a 99.8% confidence interval, for Mi - U2 given the following information. ni = 60,71 = 2.55, 81 = 0.93 m2 = 25, 72 = 3.01, 82 = 0.4 Rounded both solutions to 2 decimal places. + Submit Question Question 10 Give a 95% confidence interval, for Mi - given the following information. ni 45, 21 = 2.01, 81 = 0.72 40, Ē2 2.18, 82 0.77 n2 Rounded both solutions to 2 decimal places. + Submit Question
Construct a confidence interval for p1−p2 at the given level of confidence. x1=365, n1=503, x2=447, n2=558, 95% confidence
Sample 1 Sample 2 n1 = 15 n2 = 13 x1 =54 x2 = s1 =39 77 s2=46 Independent random samples selected from two normal populations produced the sample means and standard deviations shown to the right a. Assuming equal vanances, conduct the test Ho (μι-μ2) 0 against H. (m-H2)" 0 using α 0 05 b. Find and interpret the 95% confidence interval for (P:- a. Find the test statistic The test statistic is Round to two decimal places as...
Construct a confidence interval for p1−p2 at the given level of confidence. x1=365 n1=536 x2=435 n2=593 90% confidence The researchers are (blank) % confident the difference between the two population proportions, p1−p2, is between (blank) and (blank)
Two samples are taken with the following sample means, sizes, and standard deviations ¯ x1 x¯1 = 31 ¯ x2 x¯2 = 28 n1 n1 = 70 n2 n2 = 46 s1 s1 = 4 s2 s2 = 2 We want to estimate the difference in population means using a 89% confidence level. What distribution does this require? t, df = 108 z NOTE: The more accurate df formula, used above, is: df= ( s 2 1 n1 + s...