The proportion of people that own cats is 80%. Aveterinarian believes that this proportion is significantlydifferent than 80% and surveys 500 people. Test theveterinarian's claim at the a = 0.05 significance level.Preliminary:a. Is it safe to assume that n ≤ 0.05 of all subjects inthe population?NoYesb. Verify np(1 - p) ≥ 10. Round your answer to onedecimal place.np(1 - p)Test the claim:a. The null and alternative hypotheses areO H : }=0.8Haμ0.8Ho p≤0.8Ha p > 0.8.Ho: p=0.8Ha: p 0.8Ο Η : μ < 0.8:Ha p>0.8Η : μ Σ 0.8Ha: μ < 0.8Ho: p=0.8Ha p < 0.8b. The test isSelect an answerc. Based on the sample of 500 people, 75% owned cats.Calculate the test statistic. Round to two decimalplaces.x =d. Calculate the p-value. Round to four decimal places.e. Make a decision.Fail to reject the null hypothesisReject the null hypothesisf. Make a conclusion.There is not sufficient evidence that theproportion of people who own cats issignificantly different.There is sufficient evidence that theproportion of people who own cats issignificantly different.

a. YesIt is safe to assume n < 0.05 of all subjects in the population. This is because the…

Answered: The proportion of people that own cats…

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 testing H0: zippity-do-dah against H1: winter is coming, with a 5% level of significance, the p-value is found to be .0458. State the decision and conclusion.
Most dermatologists recommend that the ideal shower lasts approximately 10 minutes. A researcher suspects that the average shower length of high school students is greater than 10 minutes. To test the belief, the researcher surveyed 125 randomly selected high school students and found that their average shower length was 14.7 minutes. With all conditions for inference met, a hypothesis test was conducted at the significance level of α=0.05, and the test produced a p-value of 0.0000. Which of the following is an appropriate conclusion? a) the test was flawed because the p-value cannot equal 0. b) the researcher has statistical evidence to conclude that the simple mean shower length for high school students is greater than 10 minutes. c) the researcher does not have statistical evidence to conclude that the sample mean shower length for high school students is greater than 10 minutes. d) the researcher has statistical evidence to conclude that the population mean shower length for high…
In a survey, 37% of the respondents stated that they talk to their pets on the telephone. A veterinarian believed this result to be too high, so he randomly selected 210 pet owners and discovered that 74 of them spoke to their pet on the telephone. Does the veterinarian have a right to be skeptical? Use the α=0.1 level of significance. Because np01−p0=nothing ▼ not equals≠ less than< equals= greater than> 10, the sample size is ▼ greater than less than 5% of the population size, and the sample ▼ is given to be random, is given to not be random, can be reasonably assumed to be random, cannot be reasonably assumed to be random, the requirements for testing the hypothesis ▼ are are not satisfied. (Round to one decimal place as needed.) What are the null and alternative hypotheses? H0: pp sigmaσ muμ pp equals= equals= greater than> less than< not equals≠ 0.370.37 versus H1: pp pp muμ sigmaσ less than< less…
A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What size sample should be obtained if she wishes the estimate to be within 0.040.04 with 9090% confidence if a) she uses a previous estimate of 0.420.42? b) she does not use any prior estimates?
The american statistical association publishes a monthly magazine sent to all of its memebers. this magazine once included an article that asked "how many chocolate chips are there in a bag of chips ahoy cookies?" Nabisco, the makers of these cookies, claims there are 1000 chocolate chips in each 18- ounce bag of cookies. The authors tested this claim by obtaining forty-two 18- ounce bags of cookies, disolving the cookies in water to seperate the chocolate chips in each bag. The number of chips in 16 of their 42 bags is provided. The data collected was used to test if the number of chocolate chips in each 18- ounce bag of chips ahoy does not support nabiscos claim. What is the proposed analysis and why you chose the analysis? Scales of measurement (i.e., nominal, ordinal, interval or ratio) for variable(s) that will be used in the analysis: What is the null and alternative hypotheses (based on context of study) in symbols? What is the test assumptions and make a decision?…
The american statistical association publishes a monthly magazine sent to all of its memebers. this magazine once included an article that asked "how many chocolate chips are there in a bag of chips ahoy cookies?" Nabisco, the makers of these cookies, claims there are 1000 chocolate chips in each 18- ounce bag of cookies. The authors tested this claim by obtaining forty-two 18- ounce bags of cookies, disolving the cookies in water to seperate the chocolate chips in each bag. The number of chips in 16 of their 42 bags is provided. The data collected was used to test if the number of chocolate chips in each 18- ounce bag of chips ahoy does not support nabiscos claim. what is the conclusion ? Based on your decision, identify and explain the type of error you could be making?
The american statistical association publishes a monthly magazine sent to all of its memebers. this magazine once included an article that asked "how many chocolate chips are there in a bag of chips ahoy cookies?" Nabisco, the makers of these cookies, claims there are 1000 chocolate chips in each 18- ounce bag of cookies. The authors tested this claim by obtaining forty-two 18- ounce bags of cookies, disolving the cookies in water to seperate the chocolate chips in each bag. The number of chips in 16 of their 42 bags is provided. The data collected was used to test if the number of chocolate chips in each 18- ounce bag of chips ahoy does not support nabiscos claim. What is the proposed analysis and why you chose the analysis? Scales of measurement (i.e., nominal, ordinal, interval or ratio) for variable(s) that will be used in the analysis: What is the null and alternative hypotheses (based on context of study) in symbols? What is the test assumptions and make a decision?…
The american statistical association publishes a monthly magazine sent to all of its memebers. this magazine once included an article that asked "how many chocolate chips are there in a bag of chips ahoy cookies?" Nabisco, the makers of these cookies, claims there are 1000 chocolate chips in each 18- ounce bag of cookies. The authors tested this claim by obtaining forty-two 18- ounce bags of cookies, disolving the cookies in water to seperate the chocolate chips in each bag. The number of chips in 16 of their 42 bags is provided. The data collected was used to test if the number of chocolate chips in each 18- ounce bag of chips ahoy does not support nabiscos claim. What is the test assumptions and make a decision? Inferential statistic(s) and p-value(s)? What is your decision? what is the conclusion ? Based on your decision, identify and explain the type of error you could be making?
t is believed that the percent of convicted felons who have a history of juvenile delinquency is 70%. Isthere evidence to support the claim that the actual percentage is more than 70% if out of 200 convictedfelons, we find that 154 have a history of juvenile delinquency? Set the level of significance at � = 0.05a) Write the null and alternative hypotheses.b) Check the conditions to conduct the hypothesis test for the population proportion.c) Find the z test statistic and the p-value.d) Sketch the z curve indicating the z test statistic and the p-value.e) Should you reject or fail to reject the null hypothesis based on the p-value obtained in the previous part?Why?f) State your conclusion from the test
A researcher wishes to estimate the proportion of adults who have high speed internet access. what size samples should be obtained if she wishes the estimate to be within 0.02 with 90% confidence if A) She was a previous estimate of 0.32? B) She does not use any prior estmates?
The claim is that the proportion of adults who smoked a cigarette in the past week is less than 0.30, and the sample statistics include n=1126 subjects with 327 saying that they smoked a cigarette in the past week. Find the value of the test statistic.
A press release states that "by an overwhelming margin, Americans want to live in a sunny place." This statement is based on data from a nationally representative sample of 2260 adult Americans. Of those surveyed, 1255 indicated that they would prefer to live in a hot climate rather than a cold climate. Suppose that you want to determine if there is convincing evidence that a majority of all adult Americans prefer a hot climate over a cold climate. (Suppose p = proportion of all adult Americans who would prefer to live in a hot climate rather than a cold climate) (a) What hypotheses should be tested to answer this question? H0: p = 0.5 versus Ha: p > 0.5 H0: p = 0.5 versus Ha: p < 0.5 H0: p ≠ 0.5 versus Ha: p = 0.5 H0: p < 0.5 versus Ha: p > 0.5 H0: p = 0.5 versus Ha: p ≠ 0.5 (b) The P-value for this test is 0.00000007. What conclusion would you reach if ? = 0.01? Fail to reject H0. We have convincing evidence that a majority of all adult Americans prefer a…

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