elearn.squ.edu.om/mod/quiz/attempt.php?attempt%3D23238858&cmid%3D11istics || Fall21Time left 0:35:56Jestion 1A sample of size 20 is selected from a population for testing Họ : µ = 15 vs H1 : µ # 15 using the small sample t-test.If the test value is to and the significance level is 0.10, the rejection region iset yetsweredrked out ofSelect one:O a. reject Ho if to|> 1.729lag questionO b. reject Ho if to > 1.729O c. reject H, if to < 1.729O d. reject H, if |to< 1.729Next page

Answered: Image /qna-images/answer/20d920d5-f2a5-45b4-97b3-35b72e283bd6.jpg

Answered: Time left 0:35:56 A sample of size 20…

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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Please put the following in an actual formula: c) Step 3: alpha = .05 (two sided test) Area under the acceptance region on either side = .50-.025 = .4750 Critical value is 1.96 (As per the normal distribution table)
18.40 (EX) Magnets for pain relief 1/5: A randomized, double-blind experiment studied whether magnetic fields applied over a painful area can reduce pain intensity. The subjects were 50 volunteers with postpolio syndrome who reported muscular or arthritic pain. The pain level when pressing a painful area was graded subjectively on a scale from 0 to 10 (0 is no pain, 10 is maximum pain). Patients were randomly assigned to wear either a magnetic device or a placebo device over the painful area for 45 minutes. Here is a summary of the pain scores for this experiment, expressed as means ± standard deviations: Magnetic device Place device (n=29) (n=21) Pretreatment 9.6 ± 0.7 9.5 ± 0.8 Posttreatment 4.4 ± 3.1 8.4 ± 1.8 1.1 ± 1.6 Change 5.2 + 3.2 Is there good evidence that the magnetic device is better than a placebo equivalent at reducing pain? Let μ₁ and μ₂ be the mean change in pain for patients given the magnetic device or the placebo device, respectively. State hypotheses for the…
Recreational Time A researcher wishes to see if there is a difference between the mean number of hours per week that a family with no children participates in recreational activities and a family with children participates in recreational activities. She selects two random samples and the data are shown. Use μ1 for the mean number of families with no children. At =α0.05, is there a difference between the means? Use the critical value method and tables. State the hypotheses and identify the claim. H0: Claim or not a Claim H1: Claim or not a claim Find the Critical Value(s): Round answer to at least 3 decimal places. Compute the test Value: Round the answer to at least 3 decimal places. Make the decision Summarize the results. There is or is not enough evidence to support the claim or reject the claim. X σ n No children 8.9 2.7 35 Children 10.5 2.8 35
Find the critical value(s) and rejection region(s) for a two-tailed chi-square test with a sample size n = 16 and level of significance α = 0.10. 1 Click the icon to view the Chi-Square Distribution Table. Find the critical value(s). (Round to three decimal places as needed. Use a comma to separate answers as needed.) Find the rejection region(s). Choose the correct answer below. O A. in O C. Q ✔ Q O B. O D. 40 a ✔
= Consider a test of Ho: M₁ = μ₂ versus Ha: M₁ > µ₂ using the sample results ₁ $2 8.16 with n₂ = 24. What value is closest to the p-value for this test? = 0.0014 0.052 0.104 0.948 82.3, $1 = 7.54 with n₁ = 28 and 2 = 78.6,
Test the claim about the population mean, μ, the given level of significance using the given sample statistics. Claim: μ≠6000; α=0.08; σ=399. Sample statistics: x=6300, n=37 Determine the critical value(s). Select the correct choice below and fill in the answer box to complete your choice. A. The critical value is B.The critical values are ±
#3 Find the critical value(s) for the type of t-test with level of significance a and sample size n. Ho = 20, a= 0.01, n= 12 O A. ±1.796 O B. +3.106 C. OC. +2.718 O D. +2.201 P Type here to search 6 H E O +D F4 F2 F5 F8 %24 4. 5 2. 6. E R.
answer item 2 only. follow the guide on second image in answering. upvote guaranteed.
How large of a sample size is required? Round your critical value to 3 places.
pleasnw answer.
We take a sample of size 40 to test Hoitt=40 against Hil<40. We compute a test statistic of z = - 2.17. What is the P- value associated with this test statistic? .4850 .5150 .0150 .0300

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