A random sample of size n = 9 will be taken from Y~N(H,0 = 24) where u isunknown. The following hypothesis test will be conducted:Ho: µ = 145Ha:u > 145

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Answered: A random sample of size n = 9 will be…

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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Consider a population of values described by X ~ N(20, 92) For a specific sample of size n = 15, we have X-bar = 22.4. Find the Z-score for the X-bar value.
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
The test statistic for testing Họ: u = 100 against Ha: u z 100 was t = 3.3, with P-value 0.001. Which of the following is the appropriate conclusion? Since the P-value is very small, we are unable to conclude that u = 100. In order to interpret the results, we must first know the sample size. Since the P-value is very small, we conclude that µ ± 100. Since the P-value is very small, we are unable to conclude that u # 100. Since the P-value is very small, we conclude that u = 100.
#6.3 (p.344). Conduct a test of H0: μ1>= μ2-2.3 versus Ha: μ1< μ2-2.3 for the sample data summarized here. Use α=0.01 in reaching your conclusions.
12:08 AT&T * 4 all 65% 3. RT = 22 and US = 18 VT = R UV = RS = ST = U II
Assume that we estimated the following model by OLS: y =β₁ + β₂x + u.The sample size of the data is n=62. We calculated that the standard errors for β₁ and β₂ are se(β₁)=1 and se(β₂)=2. Also, the estimates for β₁ and β₂ are β₁=3 and β₂=5. We want to test: H₀ : β₁ =5 H₁ : β₁ ≠5.for α=0.05 significance level. What is the p-value of the test?
A hypothesis test is conducted with H0:μ=41H0:μ=41 and H1:μ<41H1:μ<41. A simple random sample of size n=43n=43 is drawn, with ¯x=31x¯=31, and s=16s=16. Determine the P-value. (Round to four decimals places.)
Does this reject Ho or not? What is the decision and justification?
11. A hypothesis test is conducted with H0 : µ = 46 vs. Ha: µ ≠ 46. The hypothesis test sample finds x̅ = 47.2, s = 5, and n = 81. The tail area in this test is P =
We have a random sample of 36 data palrs where the sample mean of the differences is 1.18 and the sample standard devlation of the differences Is 3. Then the sample test statistic Is d = 1.18 Using these values, along with u = 0, we calculate the corresponding t value for the test statistic. 1.18 - 0 V V36 0.065
Assume that we estimated the following model by OLS: y =β₁ + β₂x + u.The sample size of the data is n=62. We calculated that the standard errors for β₁ and β₂ are se(β₁)=1 and se(β₂)=2. Also, the estimates for β₁ and β₂ are β₁=3 and β₂=5. We want to test: H₀ : β₂=0 H₁ : β₂≠0.for α=0.05 significance level. What is the t statistic? [We denote the estimates by bold font]
Consider Ho: H=75 versus H1: µ<75. A random sample of 16 observations taken from this population produced a sample mean of 73.2. The population is normally distributed with o=6 a) Calculate the test statistic (round to two decimal places) b) Use z-table or technology to get the p-value (round to four decimal places)

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A random sample of size n = 9 will be taken from Y~N(H,0 = 24) where u is unknown. The following hypothesis test will be conducted: Ho: µ = 145 Ha: u > 145