Data show that men between the ages of 20 and 29 in a general population have a mean height of 69.3 inches, with a standard deviation of 3.1 inches. A baseball analyst wonders whether the standard deviation of heights of major-leaguebaseball players is less than 3.1 inches. The heights (in inches) of 20 randomly selected players are shown in the table.Click the icon to view the data table.Test the notion at the a 0.10 level of significance.What are the correct hypotheses for this test?Data tableThe null hypothesis is H: o= 3.1.The alternative hypothesis is H,:< 3.1.Calculate the value of the test statistic.72 74 71 73 7670 77 76 72 7277 72 75 70 7374 75 73 74 732- (Round to three decimal places as needed.)

From the given data Given data : sample size, n = 20 population standard deviation,σ=…

Answered: Test the notion at the a 0.10 level of…

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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K Find the P-value for the indicated hypothesis test with the given standardized test statistic, z. Decide whether to reject Ho for the given level of significance a Two-tailed test with test statistic 2-2.26 and a=0.04 P-value = (Round to four decimal places as needed.) State your conclusion. Fail to reject Ho Reject Ho
At a magic shop, the salesperson shows you a coin that he says will land on heads more than 70% of the times it is flipped. In an attempt to convince you he's correct, the salesperson asks you to try the coin yourself. You flip the coin 65 times. (Consider this a random sample of coin flips.) The coin lands on heads 49 of those times. Complete the parts below to perform a hypothesis test to see if there is enough evidence, at the 0.10 level of significance, to support the salesperson's claim that the proportion, p, of all times the coin lands on heads is more than 70%. (a) State the null hypothesis H, and the alternative hypothesis H, that you would use for the test. Ho H: 0 D=D (b) For your hypothesis test, you will use a Z-test. Find the values of np andn (1-p) to confirm that a Z-test can be used. (One standard is that np 2 10 and n(1-p) > 10 under the assumption that the null hypothesis is true.) Here n is the sample size and p is the population proportion you are testing.
2 Solve all parts please
HW20: Please answer all sections
Test the claim that the mean GPA of night students is larger than 2 at the 0.10 significance level.The null and alternative hypothesis would be: _______ The test is:right-tailed left-tailed two-tailed Based on a sample of 30 people, the sample mean GPA was 2.02 with a standard deviation of 0.07The p-value is: ____ (to 2 decimals)Based on this we: Reject the null hypothesis Fail to reject the null hypothesis
K A sample mean, sample size, and sample standard deviation are provided below. Use the one-mean t-test to perform the required hypothesis test at the 10 % significance level. x=24, s=5, n=32, Ho H=22, H₂: #22 The test statistic is t= (Round to two decimal places as needed.) The P-value is (Round to three decimal places as needed.) the null hypothesis. The data sufficient evidence to conclude that the mean is
K df A 2 View an example Get more help. W The test statistic of z= 1.36 is obtained when testing the claim that p>0.8. a. Identify the hypothesis test as being two-tailed, left-tailed, or right-tailed. b. Find the P-value. c. Using a significance level of a = 0.01, should we reject H, or should we fail to reject H₂? S Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table a. This is a right-tailed test. b. P-value= (Round to three decimal places as needed.) mand D TEMPLATE Sel....docx X дв 3 RO F3 E D C $ 4 a FA R F DO resume.docK % 5 V FB T G 6 Standard Normal Distribution Table (Page 1) B NEGATIVE z Scores Y 2 H -3.50 and -3.2 -30 MacBook Air -28 -28 -25 & 7 ET U N Standard Normal (2) Distribution: Cumulative Area from the LEFT 100 112 13 14 1015 DO 0003 DODS 0007 0010 MES M 0019 2006 NO 000 0047 5062 8 J 50003 0005 2007 2009 0013 2018 - BORS 2004 8045 DII I M 2003 0006 2008 2000 2013 2018 100004 8333 (…
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Test the claim that a six-sided dice is fair at the 0.05 significance level. Complete the table. Round all answers to three decimal places. Number rolled on dice ObservedFrequency ExpectedFrequency (O−E)2E(O-E)2E 1 25 2 24 3 10 4 9 5 7 6 6 H0H0: p₁ = p₂ = p₃ = p₄ = p₅ = p₆H1H1: at least one is different Original claim = Select an answer H₀ H₁ Enter the critical value, along with the significance level and degrees of freedom χ2χ2(αα,df) below the graph. (Graph is for illustration only. No need to shade.) X2Χ2(,) = (Round to three decimal places.) Test Statistic = (Round to three decimal places.)p-value=(Round to four decimal places.) Decision: Select an answer Fail to reject the null hypothesis Reject the null hypothesis Accept the alternative hypothesis Accept the null hypothesis Conclusion: Select an answer There is not sufficient evidence to warrant rejection of There is not enough evidence to support There is sufficient…
K @ 2 View an example Get more help W S 34 The test statistic of z=0.62 is obtained when testing the claim that p > 0.9. a. Identify the hypothesis test as being two-tailed, left-tailed, or right-tailed. b. Find the P-value. дв mand c. Using a significance level of a = 0.05, should we reject H, or should we fail to reject H₂? Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. a. This is a X 3 8.0 E D test. C $ 4 2 R F Standard Normal Distribution Table (Page 1) V % 5 NEGATIVE z Scores -3.50 and lower -34 z T ♥ 32 -30 -2.9 -28 -25 G Standard Normal (2) Distribution: Cumulative Area from the LEFT 00 01 0 04 05 6 B 0001 0000 0005 0007 0010 0013 0019 0026 0035 0047 0062 MRO FO Y 000 0005 0007 MacBook Air H 0009 0013 DOB DORS 0034 0045 0060 ww & 7 N 000 0006 0006 0009 0013 0018 0024 0033 0044 005A 8 F7 U J 8 0009 0004 0006 0009 0017 0023 0032 0043 0067 M75 DII FO I M 0003 0004 0006 0008 0012 0016 0023…
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