Tests the claim that 41 # µ2. Assume the samples are normally distributed, random and independent.of = 0$1 = 0.67 ; s2 = 0.77I1 = 48.47 ; £2 = 48.96n1 = 11; n, = 15Degrees ofFreedomStandard Errort-Test Statistic(n1 – 1) - sí + (n2 – 1) - s(21 – 72) – (µ1 – 42)t =21 + n2 – 2S-i, =n2n1 + n2 – 2nia. Calculate the Standard Error s-i, =(use 3 decimals)(use 2 decimal places)b. Calculate the t-test statistic using the standard error from part a. t =c. What are the degrees of freedom? df%3Dd. At a = 0.02, Use the distribution table to find the critical values for the rejection regionte = ±(use 4 decimal places)

Answered: Tests the claim that 41 # µ2. Assume…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Need help with part (b) please. Thanks
Let Y be a continuous random variable that is normally distributed with mean, µ = 30 and standard deviation, o = 2.4, find P( 31.2 < y < 33.6) Answer should be accurate to 4 decimal places and entered in the format 0.XXXX
Tests the claim that 1 <2. Assume the samples are random and independent. 01 = 0.65 ; 02 = 0.62 T = 46.77 ; E2 = 47.07 %3D n1 = 45; n2 = 33 a. Calculate the Standard Error o- = (3 decimal places) b. Calculate the Z-test statistic using the standard error from part a. z= (2 decimal places) C. At a = 0.07, Use the distribution table to find the critical values for the rejection region (3 decimal places) d. What is your conclusion? O Fail to reject the null hypothesis and do not support the claim O Accept the null hypothesis and support the claim O Accept the alternative hypothesis and reject the claim O Reject the null hypothesis and support the claim O Reject the alternative hypothesis and support the claim
To test Ho: μ = 100 versus H₁: μ100, a simple random sample size of n = 18 is obtained from a population that is known to be normally distributed. Answer parts (a)-(d). Click here to view the t-Distribution Area in Right Tail. (a) If x= 104.5 and s= 8.2, compute the test statistic. t = 2.328 (Round to three decimal places as needed.) (b) If the researcher decides to test this hypothesis at the α = 0.01 level of significance, determine the critical values. The critical values are (Use a comma to separate answers as needed. Round to three decimal places as needed.)
Suppose that samples of size n = 25 are selected at random from a normal population with mean 100 and standard deviation 10. What is the probability that the sample mean falls in the interval from μ- 2.00x to µx + 0.60×? Express your answer to four decimal places (e.g. 0.9876). The probability is i
None
Tests the claim that 1 # p2. Assume the samples are normally distributed, random and independent. of + o S1 =0.77 ; s2 = 0.82 E1 = 48.92 ; z2 = 48.94 n1 = 24; n2 = 31 a. Calculate the Standard Error s-, = (use 3 decimal places) (use 2 decimal places) b. Calculate the t-test statistic using the standard error from part a. t = c. What are the degrees of freedom? df %3! d. At a = 0.02, Use the distribution table to find the critical values for the rejection region t = ± (use 4 decimal places) e. What is your conclusion? O Fail to reject the null hypothesis and do not support the claim O Reject the alternative hypothesis and support the claim O Accept the null hypothesis and support the claim O Reject the null hypothesis and support the claim O Accept the alternative hypothesis and reject the claim
J Suppose that Shoe Sices Of American women have a bell Shaped elu standard with a mean of 8,37 and a eleviation of 1.49, using the empirical Rule what percentage of american women have Shoe Sizes that are no more than 9.su? do not Roundl your answer
A random sample of size 10 yielded roughly "mound-shaped" data with a sample mean of 63.5 and a sample variance of 60.8. Let (L, OU) be the interval estimate that contains the population mean with 95% probability. Find the width of the interval. That is, find 0 – 0₁. 4.52 5.49 5.58 5.70 9.04 10.99 11.16 11.40 none of the other answers give the correct width

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