Exercise 10.10 (Inferences About the Difference Between Two Population Means: Sigmas Unknown)Consider the following hypothesis test.The following results are from independent samples taken from two populations.a. What is the value of the test statistic (to 2 decimals)?c. What is the p-value? Use Table 2 from Appendix B.The area in the upper tail is - Select your answer - ♦d. At a = 0.05, what is your conclusion?p-value is Select your answer -Icon Key-+Sample 1n1 35HoHo: μ1 μ2 = 0Ha : μι – με 70== 13.6x 1$1 = 5.2b. What is the degrees of freedom for the t distribution (round the answer to the previous whole number)?Sample 2n₂ = 40; two-tailed p-value isX2$2=10.1= 8.5Select your answer - +Question 1 of 2 ►Hint(s) Check My WorkHint(s) Check My Work

Null Hypothesis H0:μ1-μ2=0 Alternative Hypothesis Ha:μ1-μ2≠0 Sample 1 Sample 2 Sample size…

Answered: Exercise 10.10 (Inferences About 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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A sample mean, sample size, and population standard deviation are provided below. Use the one-mean z-test to perform the required hypothesis test at the 10% significance level. x=26 n=20, σ=6 H0: μ=24 Ha: μ>24 The test statistic is z=___________ (Round to two decimal places as needed.) Identify the critical value(s). Select the correct choice below and fill in the answer box within your choice. (Round to two decimal places as needed.) A. The critical values are ±zα/2=±______________ B. The critical value is −zα=_____________ C. The critical value is zα=___________ _____ (Reject, do not reject) the null hypothesis. The data ____________________(do not provide, provide sufficient) evidence to conclude that the mean is (less than 40, equal to 40, not equal to 40, greater than 40)
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HELP ASAP. info is given in the pic. 8) At which value for alpha (type I) error is the ANOVA model statistically significant?A) 0.05B) 0.025C) 0.01D) 0.005E All of the above 9) When using Fisher's LSD test with a = 0.05 to compare age categories, what is the LSDvalue when comparing the Under 20 group to the 20 to 29 group?A) 9.283B) -0.376C) 2.120D) 11.272E) -2.0 10) Treating the Age factor as a random effect, use the components of variance model toestimate the variance in systolic blood pressure (Y).A) 8.42B) 33.69C) 70.67D) 104.37E) 239.13
For the hypothesis test Ho: u = 14 against H1:µ < 14 and variance known, calculate the P-value for the following test statistic: Z0 = - 1.96. Round your answer to three decimal places (e.g. 98.765). P-value
Use technology and a t-test to test the claim about the population mean μ at the given level of significance α using the given sample statistics. Assume the population is normally distributed. Claim: μ>79; α=0.10 Sample statistics: x=80.2, s=3.7, n=28 What are the null and alternative hypotheses? Choose the correct answer below. A. H0:μ≠79 HA:μ=79 B. H0:μ=79 HA:μ≠79 C. H0:μ≤79 HA:μ>79 D. H0:μ≥79 HA:μ<79 What is the value of the standardized test statistic?= What is the P-value of the test statistic?= Decide whether to reject or fail to reject the null hypothesis. Choose the correct answer below. A. Reject H0. There is enough evidence to support the claim. Your answer is correct. B. Reject H0. There is not enough evidence to support the claim. C. Fail to reject H0. There is enough evidence to support the claim. D. Fail to reject H0. There is not enough…
A sample mean, sample standard deviation, and sample size are given. Perform the required hypothesis test about the mean, μ, of the normal population from which the sample was drawn. H0: μ ≤ 2.85, Ha: μ > 2.85, x = 3.26, s = 0.55, n = 9, α = 0.05
Given the null and allernative hypotheses, sample means, sample sizes, and population standard deviations shown to the right, conduct a hypothesis HA H 20 test using an alpha luvel equal to 0.01 X, = 149 x2- 131 O1 = 11 n, = 55 He H - 20 6= 15 40 Determine the rejection region for the test statistic z. Select the correct choice below and fill in the answer box to complete your choice. (Round to two decimal places as needed) OA. z> OB. 24 or z > OC. z« Calculate the value of thn test statishC 2= (Ruund to two decimal places as nooded.) Since the lust statistic V in the rejuction region, V the null hypothusis. There is V evidence to conclude that the mearı of population 1 is less thari the mean of populalion 2.
Consider the hypothesis test below. Ho: P1 P2 ≤0 Ha : Pi-P2 > 0 The following results are for independent samples taken from the two populations. Sample 1 731= 100 P₁ = 0.24 Use pooled estimator of p. a. What is the p-value (to 4 decimals)? Use Table 1 from Appendix B. 0.0022 b. With a = 0.05, what is your hypothesis testing conclusion? Conclude the difference between the proportions is greater than 0 Sample 2 72 = 300 P₁ = 0.14
Find the test statistic: Determine the P-value: State the final conclusion that addresses the original claim:
Score: 0 of 1 pt 12 of 28 (12 complete) Instructor-created question Course Note Packet Chapter 9 Page 7,9 and 10 If, in a sample of n = 30 selected from a normal population, X= 55 and S= 20, what is your statistical decision if the level of significance, a, is 0.05, the null hypothesis, Họ, is u = 50, and the alternative hypothesis, H;, is u+ 50? Click here to view page 1 of the table of the critical values of t Click here to view page 2 of the table of the critical values of t. Determine the critical value(s) The critical value(s) is(are) (Round to four decimal places as needed. Use a comma to separate answers as needed.) Determine the test statistic, teTAT- tSTAT =O (Round to four decimal places as needed.) State your statistical decision. Choose the correct answer below. O A. The test rejects the null hypothesis. The data does not provide sufficient evidence O B. The test does not reject the null hypothesis. The data provide sufficient evidence to conclude that the mean differs from…

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