Assume that both populations are normally distributed.a) Test whether u > H2 at the a = 0.01 level of significance for the given sample data.b) Construct a 99% confidence interval about u - 42.177Sample 12451.79.5Sample 243.199O A. Ho: H1 = H2, H:Hq>H2O B. Ho: H1 = H2, HH1H2, H1: H1 H2Determine the test statistic.%3D(Round to two decimal places as needed.)Approximate the P-value. Choose the correct answer below.O A. P-value 20.10O B. P-value <0.01O C. 0.01 s P-value <0.05O D. 0.05 s P-value <0.10Should the hypothesis be rejected at the a = 0.01 level of significance?V the null hypothesis because the P-value isthe level of significance.b) The confidence interval is the range from to(Round to two decimal places as needed. Use ascending order.)

Answered: Image /qna-images/answer/f3e0828c-fa29-418e-9a9f-fbef667740a8.jpg

Answered: Assume that both populations are…

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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Chapter 9, Section 3, Exercise 061 Two intervals are given, A and B, for the same value of the explanatory variable. A: 16.5 to 25.1; B: 16.3 to 25.3; (a) Which interval is the confidence interval for the mean response?A or B Which interval is the prediction interval for the response? A or B (b) What is the predicted value of the response variable for this value of the explanatory variable?Enter the exact answer.The predicted value is=
8. Form a 90% confidence interval on the difference in means. group wine sample std dev 2.0 mean 10 17.4 no alcohol 10 12.4 2.0
10
2) The following data represent the number of passengers per flight in a random sample of 20 flights from Vienna, Austria, to Cluj-Napoca, Romania, with a new airline: 96 95 70 74 28 63 64 94 37 83 25 48 80 52 48 52 38 47 79 65 a) Find a 99% confidence interval for the mean number of passengers per flight. b) Find a 95% confidence interval for the population standard deviation.
Assume that both populations are normally distributed. a) Test whether u >H2 at the a = 0.01 level of significance for the given sample data. b) Construct a 99% confidence interval about u - 42- Sample 1 28 52.6 Sample 2 23 44.1 9.4 O A. Ho: H1 H2 O B. Ho: H1 = H2, H:Hq H2, HHy H2 Determine the test statistic. t= (Round to two decimal places as needed.) Approximate the P-value. Choose the correct answer below. O A. P-value 20.10 O B. P-value <0.01 O C. 0.05 s P-value <0.10 O D. 0.01 SP-value <0.05 Should the hypothesis be rejected at the a = 0.01 level of significance? V the null hypothesis because the P-value is V the level of significance. b) The confidence interval is the range from to (Round to twwo decimal places as needed. Use ascending order
Use a y-test to test the claim o 40 Hg:o5 40 H3: o> 40 Identify the test statistic. (Round to three decimal places as needed.) Identify the critical value(s). (Round to three decimal places as needed. Use a comma to separate answers as needed.) Choose the correct conclusion below. O A. Reject Ho. There is not enough evidence at the 10% level of significance to support the claim. O B. Reject Ho. There is enough evidence at the 10% level of significance to support the claim. O C. Fail to reject Ho. There is enough evidence at the 10% level of significance to support the claim. Fail to reject Ho. There is not enough evidence at the 10% level of significance to support the claim. Click to select your answer(s). MacBook Air esc F2 F3 F4 F1 @ 23 $4 % 2 4
Sample 1 Assume that both populations are normally distributed. a) Test whether µ, # µ, at the = 0.05 level of significance for the given sample data. b) Construct a 95% confidence interval about u, - H2- Sample 2 17 17 13 14.3 X 3.5 3.1 E Click the icon to view the Student t-distribution table. a) Perform a hypothesis test. Determine the null and alternative hypotheses. CA. Ho: H1 = H2, Hq:Hy # H2 O B. Ho: H1 = H2, H,: H1 Hz Determine the test statistic. t= - 1.15 (Round to two decimal places as needed.) Determine the critical value(s). Select the correct choice below and fill in the answer box(es) within your choice. (Round to three decimal places as needed.) O A. The critical value is O B. The lower critical value is The upper critical value is
5. a). What is a fundamental difference between the t statistic and a z-score in terms of variability? b). What value is estimated with a confidence interval using the t statistic?
Five students visiting the student health center for a free dental examination during National Dental Hygiene Month were asked how many months had passed since their last visit to a dentist. Their responses were as follows. 6 16 10 20 27 Assuming that these five students can be considered a random sample of all students participating in the free checkup program, construct a 95% confidence interval for the mean number of months elapsed since the last visit to a dentist for the population of students participating in the program. (Give the answer to two decimal places.)
Sample 1 Assume that both populations are normally distributed. a) Test whether u, # uz at the a = 0.05 level of significance for the given sample data. b) Construct a 95% confidence interval about u1 - H2. Sample 2 10 10 10.9 8.9 3.1 2.2 E Click the icon to view the Student t-distribution table. Determine tne test statistIC. t= 1.66 (Round to two decimal places as needed.) Determine the critical value(s). Select the correct choice below and fill in the answer box(es) within your choice. (Round to three decimal places as needed.) O A. The critical value is O B. The lower critical value is -2.120. The upper critical value is 2.120. Should the hypothesis be rejected? Do not reject the null hypothesis because the test statistic is not in the critical region. b) Construct a 95% confidence interval about u1 - H2. The confidence interval is the range from to. (Round to two decimal places as needed. Use ascending order.) Enter vour answer in the edit fields and then click Check Answer.
Sample 2 Assume that both populations are normally distributed. a) Test whether H1 # µ2 at the a = 0.05 level of significance for the given sample data. b) Construct a 95% confidence interval about u, - 42. Sample 1 10 10 8.9 2.2 10.9 3.1 E Click the icon to view the Student t-distribution table, O A. Ho: H1 =#2, H1: H1 > H2 OB. Ho: H1 = H2, H1: 41 #H2 O C. Ho: H1 = H2, Hq: µ1

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