An institute conducted a clinical trial of its methods for gender selection. The results showed that 173 of 315 babies born to parents using a specific gender-selection method were boys. Use the sign test and a 0.05 significance level to test the claim that the method has no effecton the likelihood of a boy.Let p denote the population proportion of baby boys. Ignore the possibility of the method decreasing the likelihood of a boy. What are the null and alternative hypotheses?O A. Ho: p=0.5H₁: p≥0.5O B. Ho: p=0.5H₁: p0.5O C. Ho:p>0.5H₁: p=0.5Find the test statistic.Test statistic = (Round to two decimal places as needed.)Find the P-value.P-value = (Round to four decimal places as needed.)Determine the proper conclusion. Choose the correct answers below.than the significance level,Since the P-value isCthe null hypothesis. There isO D. Ho: p=0.5H₁: p>0.5evidence that the method used is effective in increasing the likelihood of a boy.

From the provided information, Sample size (n) = 315 From which 173 babies born to parents using a…

Answered: An institute conducted a clinical trial…

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

Suppose 235 subjects are treated with a drug that is used to treat pain and 54 of them developed nausea. Use a 0.05 significance level to test the claim that more than 20% of users develop nausea.The test statistic for this hypothesis test is .(Round to two decimal places as needed.)
A 0.1 significance level is used for a hypothesis test of the claim that when parents use a particular method of gender selection, the proportion of baby girls is less than 0.5. Assume that sample data consists of 36 girls in 81 births. Complete (a) through (d) below. a. Identify the null hypothesis and the alternative hypothesis. b. What is the value of a? (an integer or decimal) c. Is the test two-tailed, left-tailed, or right-tailed? d. What is the P-value? (round to four decimal places)
Christine, a researcher in psychology and biobehavioral health, believes that city residents and residents of rural areas differ in how appealing they find owning a cat. A random sample of 109 people who live in San Antonio were surveyed and 59 identified themselves as a "cat person." A random sample of 108 people who live in the surrounding rural area were selected and 72 identified themselves as a "cat person." Conduct an appropriate hypothesis test at the a = 0.1 significance level to test Christine's claim. Round answers to 4 decimal places where appropriate. a. State the null and alternative hypotheses. Ho: ? ? ? ♥ H₁: ? b. What is the appropriate distribution to use for the hypothesis test? Select an answer ✓ ? ? ♥ c. Find the test statistic. Test Statistic: d. Determine the P-value: P-value: e. What decision results from the test? [Select an answer
The store has noticed that 80% of bananas go bad within one week. They wish to see if hanging bananas from the ceiling has changed the proportion of bananas of bananas that go bad within one week. They find that out of 123 bananas, 101 go bad within one week. a.) What is the p-value? b.)Describe the p-value in terms of the null hypothesis? c.)With a significance level of 0.05, should we reject, fail to reject or accept and why?
A newspaper is trying to see if opinions on the death penalty have changed over the last few decades. In 2003, 64% of adults said that they approved of the death penalty in some circumstances. The newspaper took a random sample of 1000 individuals and found that 675 of them were in support of the death penalty. Assuming a 5% significance level, what conclusion should the newspaper draw? O They should reject the null hypothesis; there is no evidence that opinions on the death penalty have changed O They should not reject the null hypothesis; there is evidence that opinions on the death penalty have changed O They should not reject the null hypothesis; there is no evidence that opinions on the death penalty have changed They should reject the null hypothesis; there is evidence that opinions on the death penalty have changed
Suppose 218 subjects are treated with a drug that is used to treat pain and 52 of them developed nausea. Use a 0.10 significance level to test the claim that more than 20% of users develop nausea. Identify the null and alternative hypotheses for this test. The test statistic for this hypothesis test is? The P-value for this hypothesis test is? Identify the conclusion for this hypothesis test.
Are blonde female college students more likely to have boyfriends than brunette female college students? 439 of the 658 blondes surveyed had boyfriends and 483 of the 748 brunettes surveyed had boyfriends. What can be concluded at the a = 0.05 level of significance? For this study, we should use Select an answer a. The null and alternative hypotheses would be: Ho: Select an answerv Select an answer Select an answer (please enter a decimal) H1: Select an answer v Select an answerv Select an answerv (Please enter a decimal) b. The test statistic ?v = (please show your answer to 3 decimal places.) c. The p-value = d. The p-value is ?v a e. Based on this, we should Select an answerv the null hypothesis. f. Thus, the final conclusion is that... (Please show your answer to 4 decimal places.) O The results are statistically insignificant at a = 0.05, so we can conclude that the population proportion of blonde college students who have a boyfriend is equal to the population proportion of…
A hypothesis test was conducted to test whether more than 50% of recent college graduates had a job offer prior to graduation. Assuming the null hypothesis is that only 50% have a job offer, a test statistic of z = 2.44 was found. When testing at the 5% significance level, which is the most appropriate conclusion? A. There is sufficient evidence to conclude that only 50% of recent college graduates had a job offer prior to graduation. B. The conclusion cannot be determined from the information given. C. There is sufficient evidence to conclude more than 50% of recent college graduates had a job offer prior to graduation. D. There is not sufficient evidence to conclude more than 50% of recent college graduates had a job offer prior to graduation.
A random sample of 200 students is taken at the University of Ottawa in order to determine the true proportion p who smoke marijuana. It is observed that 130 smoke marijuana. We wish to test Ho p = 0.75 H₁ p < 0.75 at the 0.05 significance level. The value of the test statistic and the decision are -3.27 reject the null hypothesis 3.27 do not reject the null hypothesis 2.45 reject the null hypothesis -2.45 reject the null hypothesis
Suppose a hypothesis test was performed with a level of significance of 0.05. Then if the null hypothesis is actually true, then there is a 5% chance that the researcher will end up rejecting the null hypothesis in error. True False
An institute conducted a clinical trial of its methods for gender selection. The results showed that 187 of 338 babies born to parents using a specific gender-selection method were boys. Use the sign test and a 0.01 significance level to test the claim that the method has no effect on the likelihood of a boy. Let p denote the population proportion of baby boys. Ignore the possibility of the method decreasing the likelihood of a boy. What are the null and alternative hypotheses? OA. Ho:p>0.5 H₁: p=0.5 OC. Ho: p=0.5 H₁: p20.5 B. Ho: p=0.5 H₁: p > 0.5 D. Ho: p=0.5 H₁: p=0.5 Find the test statistic. Test statistic = (Round to two decimal places as needed.)
Suppose 300 subjects are treated with a drug that is used to treat pain and 78 of them developed nausea. Use a 0.05 significance level to test the claim that more than 204% of users develop nausea.The test statistic for this hypothesis test is .(Round to two decimal places as needed.)The P-value for this hypothesis test is

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