(c) Perform a t test for the significance of B₁. Use a = 0.05.State the null and alternative hypotheses.Ho: B₁ = 01: B₁ = 0Ho: B₁ > 0H₂: B₁ ≤011H₂Ho: B₁ <01Ha: B₁ ≥ 01Ho: B₁ = 0B1Ha: B₁ * 0Ho: B1 = 0Ha: B₁ > 01Find the value of the test statistic. (Round your answer to two decimal places.)t =Find the p-value. (Round your answer to three decimal places.)p-value =State your conclusion.Reject H. There is insufficient evidence to conclude that ₁ is significant.Do not reject Ho. There is sufficient evidence to conclude that B₁ is significant.Reject Ho. There is sufficient evidence to conclude that B₁ is significant.Do not reject Ho. There is insufficient evidence to conclude that B₁ is significant.(d) Perform a t test for the significance of ₂. Use a = 0.05.State the null and alternative hypotheses.Ho: B₂ <0Ha: B₂ ≥ 0= 0Ho: B₂Ha: B₂ > 02Ho: B₂ = 0H₂: B₂ #0O Ho: B₂ = 02Ha: B₂= 0O Ho: B₂ > 0Ha: B₂ ≤0 The following estimated regression equation based on 10 observations was presented.ŷ = 27.1270 +0.5104x₁ + 0.4980x₂1Here, SST = 6,736.125, SSR = 6,222.375, 5b₁ = 0.0813, and= 0.0567.562

Answered: (c) Perform a t test for the…

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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The commercial for the new Meat Man Barbecue claims that it takes 14 minutes for assembly. A consumer advocate thinks that the assembly time is lower than 14 minutes. The advocate surveyed 12 randomly selected people who purchased the Meat Man Barbecue and found that their average time was 13.5 minutes. The standard deviation for this survey group was 2.1 minutes. What can be concluded at the the a = 0.01 level of significance level of significance? You may assume the data are normally distributed.
The average wait time to get seated at a popular restaurant in the city on a Friday night is 13 minutes. Is the mean wait time less for men who wear a tie? Wait times for 16 randomly selected men who were wearing a tie are shown below. Assume that the distribution of the population is normal. 11, 14, 14, 14, 13, 13, 10, 11, 10, 10, 12, 10, 12, 14, 13, 11 What can be concluded at the the a = 0.05 level of significance level of significance?
Test the hypothesis using the P-value approach. Be sure to verify the requirements of the test. H0: p=0.4 versus H1: p>0.4 n=125; x=55, α=0.1
While testing the null and alternate hypothesis:H0: mu=50 vs. Ha:mu not equal 50n=100p-value = 0.9357alpha = 0.05What is the correct decision? A. Do not reject H0 B. Reject H0 C. none of these D. Reject Ha
Express the null hypothesis and the alternative hypothesis in symbolic form. Use the correct symbol (μ, p, σ) for the indicated parameter. The manufacturer of a refrigerator system for beer kegs produces refrigerators that are supposed to maintain a true mean temperature, μ, of 48° F, ideal for a certain type of German pilsner. The owner of the brewery does not agree with the refrigerator manufacturer, and claims he can prove that the true mean temperature is incorrect. Group of answer choices H0 : μ ≤ 48°H1 : μ > 48° H0 : μ ≥ 48°H1 : μ < 48° H0 : μ ≠ 48°H1 : μ = 48° H0 : μ = 48°H1 : μ ≠ 48°
mm.2
The average fruit fly will lay 394 eggs into rotting fruit. A biologist wants to see if the average will change for flies that have a certain gene modified. The data below shows the number of eggs that were laid into rotting fruit by several fruit flies that had this gene modified. Assume that the distribution of the population is normal. Round your mean and standard deviation to three decimal places when doing these calculations. 376, 400, 402, 362, 386, 400, 368, 391, 399, 407, 384, 384, 371, 371 Download CSV What can be concluded at the the a = 0.01 level of significance level of significance?
The null and alternate hypotheses are: Ho Hy H2 H₁ H₁ H₂ A random sample of 11 observations from one population revealed a sample mean of 23 and a sample standard deviation of 1.1. A random sample of 4 observations from another population revealed a sample mean of 24 and a sample standard deviation of 1.3. The population standard deviations are unknown but assumed to be equal. At the 0.05 significance level, is there a difference between the population means? Required: a. State the decision rule. (Negative amounts should be indicated by a minus sign. Round your answer to 3 decimal places.) Answer is complete but not entirely correct. -1.761 or 1.761 The decision rule is to reject Ho b. Compute the pooled estimate of the population variance. (Round your answer to 3 decimal places.) Pooled estimate of the population variance
For the following hypothesis test: HO: m ≤ 14 HA: m >14 a: 0.01 with n = 38, o = 9, and x = 16, which of the following is TRUE? Select one: a. reject null hypothesis and conclude that the mean is equal to or less than 14 O b. fail to reject null hypothesis and conclude that the mean is equal to or less than 14 c. reject null hypothesis and conclude that the mean is greater than 14 d. fail to reject null hypothesis and conclude that the is greater than 14
Before the furniture store began its ad campaign, it averaged 222 customers per day. The manager is investigating if the average is smaller since the ad came out. The data for the 14 randomly selected days since the ad campaign began is shown below. Round your mean and standard deviation to three decimal places when doing these calculations. 224, 211, 206, 206, 232, 189, 222, 197, 220, 210, 212, 213, 208, 189 Download CSV Assuming that the distribution is normal, what can be concluded at the a = 0.01 level of significance?
C. Test the hypotheses Но: ß0 0 versus Ha: ß04 0. d. Determine the p-value of the test of Ho: Po 0 Noltems 1 1 1 1 22 22 233 33 Time 4.8 14.7 13.7 9.5 2.4 11.8 10.5 12.0 14.3 16.4 17.9 14.5 16.7 20.1 16.8 Noltems 3 3 3 3 3 44 4 44 5 Time 20.8 26.8 12.9 13.0 15.4 10.8 20.3 22.3 20.0 21.9 20.7 20.9 19.9 17.1 19.1 Noltems 5 5 5 5 6 6 6 6 6 6 6 777 7 Time17.2 18.1 17.9 12.9 19.6 27.9 22.2 23.2 17.5 15.3 21.8 17.9 20.1 18.9 29.3 Noltems 7 8 8 8 8 8 89 9 9 9 9 10 10 10 Time21.5 26.5 28.2 25.1 26.1 28.2 22.3 21.8 25.5 24.4 18.1 26.7 24.6 30.1 21.5 Noltems 10 10 10 11 1 12 12 12 12 14 14 15 16 Time25.2 28.2 22.6 31.3 27.2 28.8 29.7 34.3 27.9 29.7 28.7 34.6 38.0 28.0 37.0 Noltems 17 18 18 18 19 20 21 22 23 2425 25 25 26 27 Time32.5 39.5 39.0 37.0 35.5 38.3 44.0 39.6 42.3 34.6 44.9 47.4 49.2 45.8 44.0 Noltems 27 30 30 31 37 39 40 41 45 46 Time46.1 42.9 48.3 46.0 48.2 54.749.955.4 57.1 52.4
Test the hypothesis using the P-value approach. Be sure to verify the requirements of the test. H0: p=0.2 versus H1: p>0.2 n=250; x=55, α=0.1

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