A sample of 38 observations is selected from one population with a population standard deviation of 3.0. The sample mean is 100.5. Asample of 50 observations is selected from a second population with a population standard deviation of 5.2. The sample mean is 98.8.Conduct the following test of hypothesis using the 0.02 significance level.He: H₁ H₂H₁ H₁ H₂Required:a. Is this a one-talled or a two-talled test?O One-talled testⒸ Two-talled testb. State the decision rule. (Negative values should be indicated by a minus sign. Round your answers to 2 decimal places.)The decision rule is to reject Hō if zis> Answer is complete but not entirely correct.theinterval (outside1.96 Xc. Compute the value of the test statistic. (Round your answer to 2 decimal places.)1.96 X

From the "First population":The sample size, n1=38The population standard deviation, σ1=3.0.The…

Answered: A sample of 38 observations is selected…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

a. State the Null and Alternative Hypotheses and Choose the appropriate statistical test b. Determine the Level of Significance and the Critical Value c. Solve for the computed value
Perform the following hypothesis test: HO: µ = 10 H1: µ 10 The sample mean is 9.55, population standard deviation of 1.5 and a sample size of 51. Use a 5% significance level. What is the value of the test statistic? (Give your answer rounded to 2 decimals) (Be careful to make sure your + or - sign is correct)
Use the given information to find the p-value. Also, use a 0.05 significance level and state the conclusion about the null hypothesis (reject the null hypothesis or fail to reject the null hypothesis). With H 1: p≠0.377, the test statistic is z=3.06.
Use the pulse rates in beats per minute (bpm) of a random sample of adult females listed in the data set available below to test the claim that the mean is less than 79 bpm. Use a 0.05 significance level. LOADING... Click the icon to view the pulse rate data. Assuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses? A. H0: μ=79 bpm H1: μ≠79 bpm B. H0: μ>79 bpm H1: μ<79 bpm C. H0: μ=79 bpm H1: μ<79 bpm D. H0: μ=79 bpm H1: μ>79 bpm Determine the test statistic. nothing (Round to two decimal places as needed.) Determine the P-value. nothing (Round to three decimal places as needed.) State the final conclusion that addresses the original claim. ▼ Reject Fail to reject H0. There is ▼ not sufficient sufficient evidence to conclude that the mean of the population of pulse rates for adult females is ▼ greater than not less than…
The coach of a very popular men’s basketball team claims that the average distance the fans travel to the campus to watch a game is 35 miles. The team members feel otherwise. A sample of 16 fans who travel to games was randomly selected and yielded a mean of M= 36 miles and s= 5 miles. Test the coach’s claim at the 5% (.05) level of significance. one-tailed or two-tailed test: State the hypotheses: df= tα or t value for the critical region = sM = t (test statistic)= Decision:
Consider the following hypothesis test: Ho :µ = 17O Ha : µ + 170 A sample of 23 provided a sample mean of 182 and a sample standard deviation of 20. Find the value of the test statistic. Select one: O a. t= 0.60 O b. t = -0.60 O c. t= 2.88 O d. t=-2.88
A sample of 65 observations is selected from one population with a population standard deviation of 0.75. The sample mean is 2.67. A sample of 50 observations is selected from a second population with a population standard deviation of 0.66. The sample mean is 2.59. Conduct the following test of hypothesis using the 0.08 significance level. H0 : μ1 ≤ μ2 H1 : μ1 > μ2 A). Is this a one-tailed or a two-tailed test? multiple choice 1 One-tailed test Two-tailed test B). State the decision rule. (Negative values should be indicated by a minus sign. Round your answer to 2 decimal places.) C). Compute the value of the test statistic. (Round your answer to 2 decimal places.) D). What is your decision regarding H0? multiple choice 2 Reject H0 Fail to reject H0 E). What is the p-value? (Round your answer to 4 decimal places.) B, C, and D please. Thanks!
Lexus administered a Math Assessment test to a random sample of 50 graduating students. In this sample, the mean is 94 and standard deviation of 8. The population parameter are μ=88 and σ=15. Is the performance of the sample above average? Use α=0.05 and the p-value method.a. What is the p-value?0.00230.00460.0010none of theseb. The alternative hypothesis isμ≠88μ>88μ<88none of thesec. The null hypothesis isμ=88μ≥88μ≤88none of these d. Based on the result, the decision isReject the null hypothesisAccept the null hypothesisNo decisionNone of these
Consider the following hypothesis statement using a = 0.05 and data from two independent samples. Assume the population variances are not equal and the populations are normally distributed. Complete parts a and b. Ho: HH2=0 X₁ = 114.1 x₂ = 120.0 H₁:₁₂ #0 S₁ = 24.1 $₂ = 14.4 n₁ = 13 n₂=20 a. Calculate the appropriate test statistic and interpret the result. The test statistic is (Round to two decimal places as needed.) S Use technology to find the critical values for a t-distribution w rounding to two decimal places. stb. Identify the p-value from part a and interpret the result.
:Consider the following hypothesis test Ho : p = 0.45 Ha : p + 0.45 A sample of 900 provided a sample proportion of 0.47. Find the value of the .test statistic :Select one z = -1.21 .a O z = -2.41 .b O z = 2.41 .c O z = 1.21 .d O
Suppose that you're running the following hypothesis test with a = 0.05 : H,:u= 2.00 H:u#2.00 a. If the population standard deviation is assumed to be 1.5, and a SRS of 25 observations yielded X = 2.57, then calculate the value of the test statistic that you would use to run this test. b. Determine the P-Value for the test statistic in part (a). c. Using the P-Value you calculated in part (b) state the Decision that you make about the null hypothesis. JUSTIFY YOUR DECISION.
Assume a significance level of α=0.01 and use the given information to complete parts (a) and (b) below. Original claim: The standard deviation of pulse rates of a certain group of adult males is more than 19bpm. The hypothesis test results in a P-value of 0.3876 A . State a conclusion about the null hypothesis. (Reject H0 or fail to rejectH0.) Choose the correct answer below. A. Reject H0 because the P-value is greater than α. B. Fail to reject H0 because the P-value is greater than α. C. Reject H0 because the P-value is less than or equal to α. D. Fail to reject H0 because the P-value is less than or equal to α b. Without using technical terms, state a final conclusion that addresses the original claim. Which of the following is the correct conclusion? A.There is not sufficient evidence to support the claim that the standard deviation of pulse rates of the group of adult males is more than 19 bpm. B. The standard deviation of pulse rates of the group of…

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS