Three years ago, the mean price of an existing single-family home was $243,721. A real estate broker believes that existing home prices in her neighborhood are higher.(a) Determine the null and alternative hypotheses.(b) Explain what it would mean to make a Type I error.(c) Explain what it would mean to make a Type Il error.(a) State the hypotheses.Ho:H,:vs 243721(Type integers or decimals. Do not round.)

Null hypothesis H0:mu=$243721 Alternate hypothesis H1:mu>$243721

Answered: Three years ago, the mean price of an…

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

Three years ago, the mean price of an existing single-family home was $243,798. A real estate broker believes that existing home prices in her neighborhood are lower. (a) Determine the null and alternative hypotheses. (b) Explain what it would mean to make a Type I error. (c) Explain what it would mean to make a Type II error. ...... (a) State the hypotheses. Но H1: (Type integers or decimals. Do not round.) (b) Which of the following is a Type I error? O A. The broker rejects the hypothesis that the mean price is $243,798, when it is the true mean cost. B. The broker fails to reject the hypothesis that the mean price is $243,798, when the true mean price is less than $243,798. C. The broker fails to reject the hypothesis that the mean price is $243,798, when it is the true mean cost. D. The broker rejects the hypothesis that the mean price is $243,798, when the true mean price is less than $243,798. (c) Which of the following is a Type Il error? O A. The broker rejects the hypothesis…
A manager of a certain cargo company reported that his company has delivered 8453 packages during the month of January. Based on this information he also claimed that his company would deliver 124,400 packages during the year. уear. Determine whether the manager's claim is an example of a descriptive statistic or an example of an inferential statistic.
17. A student did not believe their teacher when they stated that students tend to make more mistakes on their homework when listening to music. The students gave 30 participants two tasks: one task was given while the participant performed simple math problems and gave a similar, but different set of math problems when not listening to music. The following is the mean of the difference scores for the two tasks MD=4 and an SEM=1.3 a. State the null and alternative hypothesesb. Perform a paired samples t test with the descriptive statisticsc. Is there a significant difference between the two conditions? Test using an alpha level of .05, using the direction of the test that is listed in the question. Use APA format in answering question.
According to the CITA- The Wireless Association, the mean monthly revenue per cell phone was $48.79 in 2014. A researcher suspects the mean monthly revenue per cell phone is different today and would like to perform a hypothesis test. A) Explain what it would mean to make a type 1 error B) Explain what it would mean to make a type 2 error
3. State or specify the null and alternative hypotheses in the following (use complete statements, not symbols): f. A COA auditor wants to determine if the mean monthly "ayuda" to poor Dagupan residents during the pandemic is really P5,000 as published. a. Null Hypothesis, Ho: b. Alternative Hypothesis, Ha: g. In an experimental group of 250 individuals, half were given regular doses of aspirin while the other half were given placebos with no effects. Test the claim that the aspirin group has a significantly lower heart attack rate than the placebo group. a. Null Hypothesis, Ho: b. Alternative Hypothesis, Ha: h. Is there a significant difference in the level of audit practice of accountants in terms of type of corporation, whether privately-owned or government-owned? a. Null Hypothesis, Ho: b. Alternative Hypothesis, Ha: i. Are there significant differences in the degree of influence encountered by the employees when grouped according to status of appointment, whether contractual or…
What is the null and alternative hypotheses for the average weight of dogs is 15.6 pounds?
ific Calculator Of30shg/ckivdfk1p00003g5tgeftOid1 Agroup of researchers in New York wants to test if there is any relationship between living in California and preferring warm weather to cold weather. The researchers send out an online questionnaire to 200 randomly chosen people in the US asking several questions including: "Do you live in California?" and "Do you prefer warm weather to cold weather?". The results are summarized in the table below: Prefers Warm Weather 80 Prefers Cold Weather 42 Lives in California Doesn't Live in California 35 43 Test the null hypothesis that the choices on these two questions are independent versus the alternative that they are dependent. What are the p-value and conclusion of this test if the test is performed at the alpha =0.1 level? %3D p-value = 0.0091; Fail to reject the null hypothesis %3D p-value = 0.0039; Reject the null hypothesis p-value = 0.0039; Fail to reject the null hypothesis p-value = 0.0911; Reject the null hypothesis NEXT
A researcher wishes to estimate the average blood alcohol concentration (BAC) for drivers involved in fatal accidents who are found to have positive BAC values. He randomly selects records from 75 such drivers in 2009 and determines the sample mean BAC to be 0.17 g/dL with a standard deviation of 0.080 g/dL. Complete parts (a) through (d) below. O B. The sample size is likely greater than 5% of the population. O C. The sample size is likely less than 10% of the population. O D. The sample size is likely less than 5% of the population. (c) Determine and interpret a 90% confidence interval for the mean BAC in fatal crashes in which the driver had a positive BAC. Select the correct choice below and fill in the answer boxes to complete your choice. (Use ascending order. Round to three decimal places as needed.) O A. There is a % probability that the population mean BAC is between and for drivers involved in fatal accidents who have a positive BAC value. O B. The researcher is % confident…
Mr. Jones believes that the mean income of lawyers has changed and is no longer $65 thousand per year. Which is the correct set of hypotheses to test this belief? O Ho:µ 2 65,000; Ha: µ 65, 000 О Нор - 65, 000; На: и # 65, 000 О Нор 65, 000
The mean weight of male aerobics instructors in a certain city is less than 185 lbs. Express the null and alternative hypotheses in symbolic form for this claim.
The calculator at this link will allow you to perform a one-way chi-square or “goodness of fit test”:http://vassarstats.net/csfit.htmlLinks to an external site.Fifty students can choose between four different professors to take Introductory Statistics. The number choosing each professor is shown below. Use the calculator above to test the null hypothesis that there is no preference for professors -- that there is an equal chance of choosing each of them. Report your results including chi-square, degrees of freedom, p-value and your interpretation. Use an alpha level of .05. Be careful not to over interpret – state only what the test result tells you. Professor N Dr. Able 20 Dr. Baker 8 Dr. Chavez 14 Dr. Davis 8
A group of students estimated the length of one minute without reference to a watch or clock, and the times (seconds) are listed below. Use a 0.10 significance level to test the claim that these times are from a population with a mean equal to 60 seconds. Does it appear that students are reasonably good at estimating one minute? 88 47 76 52 30 68 71 75 54 73 80 101 101 72 What are the null and alternative hypotheses? В. Но: и260 seconds H:µ= 60 seconds A. Ho: µ= 60 seconds %3D H1: µ> 60 seconds С. Но н O D. Ho: µ= 60 seconds H: µ< 60 seconds = 60 seconds %3D H1: µ#60 seconds

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