The accuracy of a census report on a city in southern California was questioned by some government officials. A random sample of1215 people living in the city was used to check the report, and the results are shown below.SampleResult127CensusEthnic OriginPercent10%BlackAsian3%30AngloLatino/Latina38%49641%48963Native American6%All others2%10n USE SALTUsing a 1% level of significance, test the claim that the census distribution and the sample distribution agree.(a) What is the level of significance?State the null and alternate hypotheses.O Ho: The distributions are different.H,: The distributions are the same.O Ho: The distributions are different.H: The distributions are different.Ho: The distributions are the same.H: The distributions are different.O Ho: The distributions are the same.H: The distributions are the same.(b) Find the value of the chi-square statistic for the sample. (Round the expected frequencies to at least three decimalplaces. Round the test statistic to three decimal places.)Are all the expected frequencies greater than 5?YesO NoWhat sampling distribution will you use?O uniformO Student'stO normalchi-squareO binomialWhat are the degrees of freedom?

Given that The Chi-Square test is calculated as below

Answered: The accuracy of a census report on a…

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

Difference tests are conducted to determine: A. the representative value in a given set of scores. B. whether two or more groups differ on an outcome. C. if the assumptions of a statistical procedure have been met. D. whether two variables correlate with each other.
The height (in feet) and trunk circumference (in inches) at breast height (4.5 feet above the ground)was measured for a random sample of Eucalyptus trees. The data are summarized below.Trunk Circumference 21.1 20.8 22.5 19.4 23.6 19.8 21.6 19.9Tree Height 34.2 32.7 35.0 31.9 36.5 31.2 33.8 31.4(a) Determine the linear regression model that will best predict the height of a Eucalyptus treebased on its trunk circumference at breast height.
What is the proportion of the blood type O?
Please scroll down to see the entire question. The quality control manager of an automobile parts factory would like to know whether there is a difference between the proportion of defective parts produced on different days of the work week. Random samples of 100 parts produced on each day of the week were selected, with the following results: Result: Mon Tues Wed Thurs Fri # of defective parts: 12 7 7 10 14 # of non-defective parts: 88 93 93 90 86 At 5% level of significance, is there evidence of a significant difference in the proportion of defective parts produced on the various days of the week (A ) Step-1: State the hypotheses ( H0 and H1 ), and identify the claim A. H0: Proportion of defective parts is not the same for the days of the week. H1: Proportion of defective parts is the same for all days of the week B. H0: Proportion of defective parts is dependent on the days of the week H1: Proportionof defective parts is…
Which one of these is NOT something that would be included in the Methods section of a research report? a. data regarding the reliability and validity of any measures used b. information regarding preregistration of the study c. details of the statistical analyses d. justification for sample size used in the study
What is one indication that there are paired samples in a data set? Choose the correct answer below. O A. Knowing the value that a subject has in one group gives one no information about the value in the second group. OB. Each observation in one group is coupled with one particular observation in the other group. OC. The researcher is comparing two populations. O D. The researcher is working with two distinct groups in the data set.
How is a sample related to a population? Choose the correct answer below. OA. A sample is a subset of a population. OB. A sample is a numerical measure that describes a sample characteristic. OC. A sample is the collection of all outcomes, responses, measurements, or counts.
a) Based on the histogram above, what is the class width? b) What is the sample size? Frequency 5.0- 4.0- 3.0- 2.0- 1.0- .0 20 30 40 50 60 Age 70 80 90 100
A random sample of employees participating in a company fitness program were asked how many days they logged an exercise activity in the past month. Their responses are reported in the histogram below.Based on the histogram above, what is the class width? Clas width = ? Days What is the sample size? Sample size = ? employees
A survey was given to 18 employees. One question asked about the one-way distance the employee had to travel for work. The results, in kilometers, are shown below. Kilometers Traveled for Work 12 10 18 3 4 28 5 32 26 10 41 85 1 7 8 5 10 15 Find the first quartile of the data.
2) Now read the following data into R. Use R for all statistical procedures. Use R studio for the test.Sample Sample A B0.7969 1.4731 1.2669 3.2137 1.5856 2.2486 0.4959 1.1156 0.5022 10.6207 0.5524 1.983510.3060 31.2243 0.6244 3.7984 1.9789 1.4710 1.6788 9.0351(a) Make q-q plots of both samples. (b) Perform a t-test (Welch's test). (c) Perform a MWU test. (d) Which test gave you the better p-value now? Why? (e) What is a “better” p-value? Why? (f) This is two sided - why?
Refer to the sample of body temperatures (degrees Fahrenheit) in the table below. Given these temperatures, what issue can be addressed by conducting a statistical analysis of the data? Subject 2 3 4 5 1 97.0 98.5 97.6 97.7 98.7 8 AM 12 AM 97.6 97.8 98.0 98.4 98.4 Choose the correct answer below. OA. The data can be used to address the issue of whether there is a correlation between body temperatures at 8 AM and at 12 AM. OB. The data can be used to address the issue of whether there is a difference between average body temperature for males and for females. OC. The data can be used to address the issue of whether there is a correlation between average body temperature and a person's exposure to sunlight. OD. The data can be used to find the percentage of people whose body temperature increases with illness. DELL

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