According to the Centers of Disease Control, about 21% of American young people between the ages of 12and 19 are obese.A student claims that the students his local schools are in better'shape than the national average, so'theirproportion of obese students is less than 21%.Which are the appropriate null and alternative hypotheses for this study?О о: р - 21%, Н: р < 21%O Ho: p = 21%, H: p 21%O Họ: p = 0, HA: P 0Оно: р - 21%, Нр» 21%

We have given that Population proportion p=21% I want to find null and alternative hypothesis.

Answered: According to the Centers of Disease…

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 it is generally accepted that 40% of consumers use Apple products. You believe that the percentage is greater. You take a sample of 600 consumers and find that 270 of them use Apple products. Conduct a hypothesis test. Assuming the null is true, what is the mean of the population? Assuming the null is true, how far, on average, should a sample proportion be from the expected?
... Done < AA *@ 100% A learn.hawkeslearning.com Question 1 of 5, Step 2 of 3 1/15 Correct 3 A psychology graduate student wants to test the claim that there is a significant difference between the IQs of spouses. To test this claim, she measures the IQs of 9 married couples using a standard IQ test. The results of the IQ tests are listed in the following table. Using a 0.10 level of significance, test the claim that there is a significant difference between the IQs assuming that the population distribution of the paired differences is approximately normal. Let the spouse 1 group be Population 1 and let the spouse 2 group be Population 2. IQs of Married Couples Spouse 105 115 124 98 112 125 105 123 129 1 Spouse 103 113 108 123 105 125 121 95 130 Copy Data Step 2 of 3: Compute the value of the test statistic. Round your answer to three decimal places. E Tables E Keypad Answer Keyboard Shortcuts Submit Answer EN O 2022 Hawkes Learning LI R H S D B
Suppose you are asked to conduct a two-tailed hypothesis test on the population mean. What type of hypothesis test would you use? Why? What assumptions do you need to make about the process when you are conducting a hypothesis test on the population mean in order for your results to be valid?
Identify the fallacy that the author of the letter below suggests the person who wrote the article commits. "You make statements about alcoholics in general on the basis of a study using entirely male samples. My experience as a member of Alcoholics Anonymous, however, has suggested that there are significant differences between female and male alcoholics. This is particularly noticeable with regards to the incidence and severity of depression"
Based on information from a large insurance company, 66% of all damage liability claims are made by single people under the age of 25. A random sample of 51 claims showed that 43 were made by single people under the age of 25. Does this indicate that the insurance claims of single people under the age of 25 is higher than the national percent reported by the large insurance company? Give the test statistic and your conclusion.
1. Government data shows that 11% of the population is victimized by property crime each year. A random sample of 408 older citizens (ages 65+) shows a victimization rate of 15%. Are older people more likely to be victimized? a. State the null and research hypotheses. b. Calculate the test statistic. c. What do you decide? Why?
According to the Washington Post, 45% of all Americans are born with brown eyes. Consider a random sample of 80 adults from New York city. We found 32 with brown eyes.(a) Is there suffcient evidence at the 0.01 level of signicance to indicate that the proportion of brown- eyed adults in New York differs from the proportion of Americans who are born with brown eyes? (b) Is there suffcient evidence at the 0.05 level of signicance to indicate that the proportion of brown-eyed adults in New York is less than the proportion of Americans who are born with brown eyes?
What is the P-value for the following scenario? A survey of 280 women 18-24 years old in 2000 found that 42.5% lived with their parents, while a similar survey of 270 women in 2012 found that 47.8% lived with their parents. Is there enough evidence to conclude that the proportion of women living with their parents was greater in 2012? Use a 5% significance level. As in Chapter 7, answers need to be correct to three decimal places beyond the first non-zero digit.
#32). Please show work and answers, need to see how it’s done. Thank you!
I need help answering this question
A news article that you read stated that 52% of voters prefer the Democratic candidate. You think that the actual percent is larger. 149 of the 266 voters that you surveyed said that they prefer the Democratic candidate. What can be concluded at the 0.05 level of significance? For this study, we should use Select an answer t-test for a population mean z-test for a population proportion The null and alternative hypotheses would be: Ho: ? p μ Select an answer ≤ = < ≥ ≠ > (please enter a decimal) H1: ? p μ Select an answer > ≥ ≤ = < ≠ (Please enter a decimal) The test statistic ? z t = (please show your answer to 3 decimal places.)
An ANOVA test is a way to find out if survey or experiment results are significant. In other words, they help you to figure out if you need to reject the null hypothesis or accept the alternate hypothesis. ANOVA is a test between groups to see if there’s a difference between them. State the four assumptions required for one-way ANOVA. How crucial are these assumptions? One-way ANOVA is a procedure for comparing the means of several populations. It is the generalization of what procedure for comparing the means of two populations? In one-way ANOVA, identify the statistic used a. as a measure of variation among the sample means. b. as a measure of variation within the samples. c. to compare the variation among the sample means to the variation within the samples. 4. What is a two-way ANOVA?

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