Sample 1:Sample 2:1713360038,4214,176E(x^2)Question 2ATest the hypothesis that μ1μ2 at α-0.025. State the hypothesis in terms of 1-2.Step 1:HO:0.0000Ha:0.0000Step 2:t crit2.048Step 3:Fill in row 88 ifthe hypothesis is one tailedReject HO ift stat2.048Fill in row 92 if the hypothesis is two tailed. The smaller number must be typed first.Reject HO iforStep 4:Step 5:Step 6:Step 7:t statReiectHO0.0000Fill in the row 102 ifthe Z table is appropriate.P-valueFill in the row 106 ifthet table is appropriate. The lower boundary must go on the left and the upper boundary on the right.P-valueQuestion 2BConstruct a 90% confidence interval for the difference in population means. State the C.1, in terms of 2-1.Lower EndpointUpper Endpoint

In this question, data about the two samples has been given, using that information we have to…

Answered: Sample 1: Sample 2: 17 13 360 03 8,421…

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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T-Mobile Wi-Fi ? 1 9:55 AM • 36% Done 14 of 18 FOL FIL FLL M F O Update i studeri.desmas.comiactivitybuilider/student/8088bcoe08264d0cod3ee897#screentc-beabee6: a5ct-4575-a535-f32a107ab362 E Sian in P View Portrait Pro. O Nursing: Tracition. 6 Legin Sessien Exolration. b Seling Assotiwe. Car tetiny tho.. O Emeloymert Cemter Aups a ntourse Carncc. く 10 of 14 Next > Unit 4. Lesson 14: Using Normal Distributions for Exper. Destry Orceu Rescarchers are tagging sharks using two different types of devices and want to know if the devices affect the heart rate of tho sharks. They tag one aroup of 8 sharks with a small device that collects a small amount of data and thoy tag another group of 8 sharks with a larger device that collects a large amount of data. They then measure the mean heart rate of the different groups and find that the difference in means is 2.5 beats per minute. Rescarchers run 1,000 simulations regrouping the data into 2 groups at random and record the differences in means…
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Use the information in the table below to answer the question. In = 15 SSXY = 285.2 beta0_hat = 36 SSxx = = 23 beta1_hat = 12.4 S = 7 If we wish to perform a hypothesis test for Ho: B1 = 0 with alpha = 0.05, what critical value from the t-table should be used for the rejection region? 2.718 2.447 1.740 2.160
12:08 AT&T * 4 all 65% 3. RT = 22 and US = 18 VT = R UV = RS = ST = U II
I don't understand how the professor got these answers, Can someone help ? The answers were : 2.38 = chi square Degrees of freedom= 1 P-value = between .2-.1 Fail to Reject
Question 5 of 5 -/1 View Policies Show Attempt History Current Attempt in Progress Suppose that x has a beta distribution with parameters a = 2.3 and B = 1. Determine to 4 decimal places the following: a. P(X < 0.23) i b. P(0.23 < X < 0.83) i c. Mean i d. Variance eTextbook and Media Save for Later Attempts: 0 of 3 used Submit Answer Activate Go to Settin I!
Which of the following is false? 1. When homoscedasticity is present, GLS is the best estimator to use 2. GLS is simply OLS on a model that has been transformed by dividing through using the error standard deviation 3. GLS is simple in theory but difficult in reality given that we do not what o is 4. GLS is better than OLS when there is heteroscedasticity as the error in the transformed model is homoscedastic
A manufacturer produces crankshafts for an automobile engine. The crankshafts wear after 100,000 miles (0.0001 inch) is of interest because it is likely to have an impact on warranty claims. A random sample of n= 15 shafts is tested and = 2.78. It is known that o = 0.9 and that wear is normally distributed. Question 1: Parameter of interest for this test Question 2: Test Ho: µ = 2.5 versus H1: u + 2.5, a = 0.05 Question 3: What is the power of the test if true u = 3.10 Question 4: Sample size required to detect a true mean of 3.10 if we wanted the power to be at least 0.9? a. Reject Hn. There is evidence to support the claim that the mean wear differs from 2.5 at a = 0.05 Question 1 Question 2 b.ns 15 v Question 3 C.n=24 Question 4 d. 0.7330 e. Mean wear of crankshafts f. Fail to reject Ho- There is no sufficient evidence to support the claim that the mean wear of crankshafts differs from 2.5 at a = 0.05 g 0.2670 >
WHen writing a null hypothesis for a two sample t test. Do you write U1 = U2 or U1 - U2 = 0? Or do both of them work?
Refer to the accompanying data display that results from a sample of airport data speeds in Mbps. Complete parts (a) through (c) below. . TInterval (13.046,22.15) x=17.598 Sx=16.01712719 n=50 a. What is the number of degrees of freedom that should be used for finding the critical value tα/2? df=__ (Type a whole number.) b. Find the critical value tα/2corresponding to a 95% confidence level. tα/2= (Round to two decimal places as needed.) c. Give a brief general description of the number of degrees of freedom. A. The number of degrees of freedom for a collection of sample data is the number of unique, non-repeated sample values. B. The number of degrees of freedom for a collection of sample data is the number of sample values that are determined after certain restrictions have been imposed on all data values. C. The number of degrees of freedom for a collection of sample data is the number of sample values that can vary…

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