Reattempt this questionQuestion with last attempt is displayed for your review onlyYou wish to test the following claim (Ha) at a significance level of a = 0.01.Ho: Pi P2Ha: Pi < P2You obtain /3.8% successes in a sample of sıze nisample of size n2 = 601 from the second population. For this test, you should NOT use the continuity correction, andyou should use the normal dıstribution as an approximation for the binomial distribution.629 from the first population. You obtain 76% successes in aWhat is the test statistic for this sample? (Report answer accurate to three decimal placestest statistic = 0.900What is the p-value for this sample? (Report answer accurate to four decimal places.)p-value = 0.1870The p-value is..less than (or equal to) agreater than oThis test statistic leads to a decision to.-11a N

The value of pooled proportion is obtained below:

Answered: Reattempt this question Question with…

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

In a sample of 81 adults selected from one town, it is found that 8 of them have been exposed to a particular strain of the flu. At the 0.01 level of significance, you wish to test the claim that the proportion of all adults in the town that have been exposed to this strain of flu is 8%. A)Give the null and alternative hypotheses and state whether this is one or two tailed test. B)Compute test statictic. C) Use the traditional method to decide if you should reject the null hypothesis or not. D) Use the P-value method to decide if you should reject the null hypothesis or not.
A research group wants to estimate the proprtion, p, of americans who can speak a language other than English. By referencing past data, the group belive that more than 45% of Americans can do so. a. state the null and alternative hypotheses for testing the group's belief/ b. If the value of the test statistic is approximately 1.46, what is the conslusion (reject H0 of fail to reject H0) of the hypotesis test? with a-0.05 c. If the true balue of is 48%, did the researchers make an error? if so what type?
A local chess club claims that the length of time to play a game has a mean of 23 minutes or more. Write sentences describing type I and type II errors for a hypothesis test of this claim. A type I error will occur if the actual mean of the length of time to play a game is ▼ less than equal to less than or equal to greater than not equal to greater than or equal to 23 minutes, but you ▼ fail to reject reject the null hypothesis, ▼ Upper H 0 : mu less than 23H0: μ<23 Upper H 0 : mu equals 23H0: μ=23 Upper H 0 : mu not equals 23H0: μ≠23 Upper H 0 : mu less than or equals 23H0: μ≤23 Upper H 0 : mu greater than or equals 23H0: μ≥23 Upper H 0 : mu greater than 23H0: μ>23 . A type II error will occur if the actual mean of the length of time to play a game is ▼ not equal to greater than or equal to equal to greater than less than or equal to less than 23 minutes, but you ▼ fail to reject reject the null hypothesis, ▼…
A local chess club claims that the length of time to play a game has a mean of 43 minutes or more. Write sentences describing type I and type II errors for a hypothesis test of this claim. A type I error will occur if the actual mean of the length of time to play a game is ▼ equal to less than or equal to not equal to greater than or equal to greater than less than 43 minutes, but you ▼ reject fail to reject the null hypothesis, ▼ Upper H 0 : mu greater than or equals 43H0: μ≥43 Upper H 0 : mu not equals 43H0: μ≠43 Upper H 0 : mu equals 43H0: μ=43 Upper H 0 : mu less than or equals 43H0: μ≤43 Upper H 0 : mu greater than 43H0: μ>43 Upper H 0 : mu less than 43H0: μ<43 . A type II error will occur if the actual mean of the length of time to play a game is ▼ greater than less than or equal to less than greater than or equal to equal to not equal to 43 minutes, but you ▼ fail to reject reject the null hypothesis, ▼ Upper H 0…
est the given claim. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, and then state the conclusion about the null hypothesis, as well as the final conclusion that addresses the original claim. Among 20802080 passenger cars in a particular region, 239239 had only rear license plates. Among 393393 commercial trucks, 5959 had only rear license plates. A reasonable hypothesis is that commercial trucks owners violate laws requiring front license plates at a higher rate than owners of passenger cars. Use a 0.050.05 significance level to test that hypothesis. a. Test the claim using a hypothesis test. b. Test the claim by constructing an appropriate confidence interval.
Consider a drug testing company that provides a test for marijuana usage. Among 269269 tested subjects, results from 3030 subjects were wrong (either a false positive or a false negative). Use a 0.100.10 significance level to test the claim that less than 1010 percent of the test results are wrong. Identify the null and alternative hypotheses for this test. Choose the correct answer below. A. Upper H 0H0: pless than<0.10.1 Upper H 1H1: pequals=0.10.1 Your answer is not correct. B. Upper H 0H0: pequals=0.10.1 Upper H 1H1: pnot equals≠0.10.1 C. Upper H 0H0: pequals=0.10.1 Upper H 1H1: pgreater than>0.10.1 D. Upper H 0H0: pequals=0.10.1 Upper H 1H1: pless than<0.10.1 This is the correct answer. Identify the test statistic for this hypothesis test. The test statistic for this hypothesis test is (Round to two decimal places as needed.) Identify the P-value for this hypothesis test. The P-value for this…
In a random survey of 500 doctors that practice specialized medicine, 20% felt that health care should beprivatized in Canada. In a random sample of 800 family physicians, 30% felt that the health care should beprivatized in Canada. Is there any difference in the two proportions? Use α = 0.10.a. Are the conditions met for using a z test to test this claim? b. Use the four-step P-value approach and test the claim described here. c. Using the critical value approach, test the hypothesis for the claim described here. Include all key steps ofthe test of hypothesis.
Assume that the data has a normal distrubution and the number of the observatiosn is greater than fifty. Find the critical z value used to test a null hypothesis. a=0.05 for a two-tailed test.
For the given scenario, determine the type of error that was made, if any. (Hint: Begin by determining the null and alternative hypotheses.) A radio station has accepted 2626 as the mean age of its listeners. One radio station executive claims that the mean age of its listeners is different from 2626. The radio station executive conducts a hypothesis test and rejects the null hypothesis. Assume that in reality, the mean age of its listeners is 2929. Was an error made? If so, what type?
For a non- directional hypotheses how is the corresponding null hypotheses (h0) articulated in a paried sample t test ? WHy? 1)H0: X1doesnt equal X2. The means for two groups are assumed to be unequal on some dependent variable 2H0: X1= X2. The means for two groups are assumed to be equal on some dependent variable 3) H0: Xd doesn't equal 0 . There is a large difference in the participant's scores on some dependent variable 4H0: Xd=0 . There is no difference in the participant's scores on some dependent variable
2. According to a flyer created by BroadwayPartyRental.com, their 18-inch helium balloons fly,on average, for 32 hours. You purchase a SRS of 50 18-inch helium balloons from this companyand record how long they fly. You would like to know if the actual mean flight time of all balloonsdiffers from the advertised 32 hours. a) State an appropriate pair of hypotheses for a significance test in this setting. Be sure todefine the parameter of interest. b) b) A 95% confidence interval for the mean flight time (in hours) for all helium balloons is(28.5, 31.4). Based on this interval, what conclusion would you make for a test of thehypotheses in #1 at the α = 0.05 significance level?
A common characterization of obese individuals is that their body mass index is at least 30 [BMI = weight/(height)2, where height is in meters and weight is in kilograms]. An article reported that in a sample of female workers, 269 had BMIs of less than 25, 156 had BMIs that were at least 25 but less than 30, and 121 had BMIs exceeding 30. Is there compelling evidence for concluding that more than 20% of the individuals in the sampled population are obese? (a) State the appropriate hypotheses with a significance level of 0.05. H0: p = 0.20Ha: p > 0.20H0: p > 0.20Ha: p = 0.20 H0: p = 0.20Ha: p < 0.20H0: p = 0.20Ha: p ≠ 0.20 Calculate the test statistic and determine the P-value. (Round your test statistic to two decimal places and your P-value to four decimal places.) z=P-value= What can you conclude? Reject the null hypothesis. There is sufficient evidence that more than 20% of the population of female workers is obese.Reject the null hypothesis. There is not…

SEE MORE QUESTIONS

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