(a)(b)State the rejection area on test statistic for population mean, when using right tailedtest at 1% significance level. Assume -distribution is used with sample size. n = 20?In a hypothesis testing, the null hypothesis, Ho was rejected and the alternativehypothesis, H₁ was not true. State whether a Type I or Type II error was committed,or a correct decision was made.

Given that (a) State the rejection area on test statistic for population mean, when using right…

Answered: (b) State the rejection area on test…

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

Determine the test statistic. Determine the P-value.
Suppose 220 subjects are treated with a drug that is used to treat pain and 51 of them developed nausea. Use a 0.01 significance level to test the claim that more than 20% of users develop nausea. Identify the null and alternative hypotheses. Identify the test statistic ( round to 2 decimal places) Identify the P value ( round to 3 decimals) Identify the conclusion for the hypothesis test
A sample of 250 adults tried the new multigrain cereal Wowl A total of 187 rated it as excellent. In a sample of 100 children, 66 rated it as excellent. Using the 0.1 significance level, the researcher wishes to show that adults like the cereal better than children. What test statistic should we use to compare the ratings of adults and children? Multiple Choice A left one-tailed test statistic Az-statistic A t-statistic A right one-tailed test statistic ( Prey 35 of 50 Next >
You are a research assistant at a zoo. The question of your study is "Has the proportion of baby zebras born in zoos has changed from 10%?". Your supervisor asks that you run a hypothesis test using a significance level of 0.05. From the study, you obtain a z-score of 0.788. What type of z test is appropriate? What is the ? Right, one-tailed test. = +1.645 Right, one-tailed test. = -1.645 Left, one-tailed test. = +1.645 Left, one-tailed test. = -1.645 Two-tailed test. = +1.645 and -1.645
Clearly one would assume that private colleges and universities would have a higher annual total cost as tuition is higher at private institutions. Construct a 95% confidence interval to estimate how much more it would cost annually to attend a private institution and interpret these values in a clear sentence. This is asking you to construct a confidence interval estimate of the difference in mean tuition. 1) Please perform an F-test for Equal Variances to determine which Two-sample t-test and SE to use. Copy and paste the necessary F-test output below and clearly state your conclusion 2) Then perform the appropriate two-sample t-test to get the necessary descriptive statistics to construct the confidence interval. Show all necessary work and/or paste your Excel output. School Type of Term Location Type of School Average Total SAT TOEFL Score Room and Board Annual Total Cost Average Indebtedness ArizonaStateUniversity 1 2 0 1080 0 4.3 12.7 12.9 BallStateUniversity 1 1 0…
n a study of the accuracy of fast food drive-through orders, one restaurant had 31 orders that were not accurate among 366 orders observed. Use a 0.10 significance level to test the claim that the rate of inaccurate orders is equal to 10%. Does the accuracy rate appear to be acceptable The test statistic for this hypothesis test Find P-value
Make a hypothesis test on two population means orproportions for variables X and Y are satisfied. If not, deliberate the assumptions youneed to make about the two populations to satisfy the condition. Explain how to choosea distribution and justify the assumption made about the unknown populationvariances.Perform a hypothesis test of two-sample mean or proportion comparison for variablesX and Y using the p-value approach at a 5% significance level. Then, interpret yourresult.Give an example for each of the Type I and Type II errors.
A random sample of 817 births included 428 boys. Use a 0.05 significance level to test the claim that 50.6% of newborn babies are boys. Do the results support the belief that 50.6% of newborn babies are boys? Identify the test statistic for this hypothesis test. The test statistic for this hypothesis test is
A one-tailed sign test is applied to a set of paired data. There were 14 pairs and the 0.10 level of significance was selected. There were 9 pluses and 5 minuses. What is the decision regarding the null hypothesis? Fail to reject it Reject it Neither reject it nor fail to reject it based on information given None of the above
1) If your p-value is less than a significance level , then your decision is to fail to reject the null hypothesis. True or False 2)The test statistic, z, in a hypothesis test measures the difference between the sample proportion and the hypothesized proportion in terms of standard deviations. True or False
A random sample of 319 front-seat occupants involved in head-on collisions in a certain region resulted in 95 who sustained no injuries. We wish to use this sample data to test whether the true proportion of uninjured occupants in head-on collisions exceeds 0.25 or not. What would your conclusions be for this test of hypothesis, given a 5% significance level?
Suppose in one season, one baseball team averaged 20 run per game ( team 1), and team 2 averaged 10 runs . Assume each team had 10 hitters (n=10 for both). Assume that we don’t know the population standard deviations on each teams hits, but assume the sample standard deviations are 5 for each team. Test whether this difference is significant at the 95% confidence level, i.e., it is rarely likely to occur by chance if one team isn’t really better than the other. Use this information to answer questions 8 -12 below (Hint: Solve like “Are Men and Women Equal Talkers” Problems) The appropriate test statistic for testing whether the difference between these two means is unlikely to have happened by chance is the z-statistic b .t-statistic chi-square statistic F-statistic The value of the test statistic is (assume population standard deviations are unknown, and not equal). 14.14 .401 .600 4.46 At the 95% confidence level, can we say this is a common difference in…

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