Assume that both populations are normally distributed.a) Test whether H, >H, at the a = 0.05 level of significance for the given sample data.Sample 1Sample 22012b) Construct a 95% confidence interval about u, - H2.47.537.66.99a) Perform a hypothesis test. Determine the null and alternative hypotheses.O A. Ho: H1 < µ2, H1: H1 > H2O B. Ho: H1 = 2, H1:H1 H2O D. Ho: H1 > H2, H1: H1

Solution-: Given: n1=20,n2=12,x1¯=47.5,x2¯=37.6,s1=6.9,s2=9,α=0.05 We want to (a) Test whether…

Answered: Sample 1 Assume that both populations…

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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Question Help Y 12.2.79 The number of successes and the sample size for a simple random sample from a population are given below. x = 8, n = 40, Ho:p=0.4, H2: p< 0.4, a = 0.01 a. Determine the sample proportion. b. Decide whether using the one-proportion z-test is appropriate. c. If appropriate, use the one-proportion z-test to perform the specified hypothesis test. Click here to view a table of areas under the standard normal curve for negative values of z. Click here to view a table of areas under the standard normal curve for positive values of z. c. Determine the test statistic, if appropriate. Select the correct choice below and, if necessary, fill in the answer box to complete your answer. z= - 2.58 (Round to two decimal places as needed.) B. The one-proportion z-test is not appropriate. Identify the critical value(s), if appropriate. Select the correct choice below and, if necessary, fill in the answer box to complete your answer. A. ±Za/2 (Round to two decimal places as…
The accompanying table lists distances (mm) between pupils of randomly selected U.S. Army personnel collected as part of a large reputable study. Results from two way analysis of variance are also shown. Use the displayed results and use a 0.05 signific conclude? Click the icon to view the data and two-way analysis of variance results. C First test for an interaction between the two factors. Determine the null and alternative hypotheses. Choose the correct answer below. OA. Ho Distances between pupils are affected by an interaction between gender and handedness. H₁: Distances between pupils are not affected by an interaction between gender and handedness. D OB. Ho Distances between pupils are not affected by handedness. H₁: Distances between pupils are affected by handedness. OC. Ho: Distances between pupils are not affected by an interaction between gender and handedness. H₁: Distances between pupils are affected by an interaction between gender and handedness. OD. Ho Distances…
Assume that both populations are normally distributed. a) Test whether µ, >H, at the a = 0.05 level of significance for the given sample data. Sample 2 12 Sample 1 20 b) Construct a 95% confidence interval about u, - H2. 47.5 37.6 6.9 9 E Click the icon to view the Student t-distribution table. a) Perform a hypothesis test. Determine the null and alternative hypotheses. O A. Ho: H1 H2 O B. Ho: H1 = H2, H4: H1 H2 O D. Ho: H1 > H2, Hq:Hq
A simple random sample of size n = 200 drivers with a valid driver's license is asked if they drive an American-made automobile. Of the 200 drivers surveyed, 118 responded that they drive an American-made automobile. Determine if a majority of those with a valid driver's license drive an American-made automobile at the a = 0.05 level of significance. ..... What type of variable is "drive an American-made automobile, or not"? A. Qualitative with two possible outcomes B. Discrete C. Continuous…
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