A guidance counselor selected random samples of 25 ninth graders, 25 tenth graders, 25 eleventh graders, and25 twelfth graders from her large high school. She asked each student whether they have a job. The results aredisplayed in the tables.Observed counts:Grade Level9th10th11th12thYes3121519Employed?No2213106Expected counts:Grade Level9th10th11th12thYes12.2512.2512.2512.25Employed?No12.7512.7512.7512.75She decides to test these hypotheses:H.: There ie no difference in the distribution of ioh status for all Qth 10th 11th and 12th araders at this biah Grade Level9th10th11th12thYes12.2512.2512.2512.25Employed?No12.7512.7512.7512.75She decides to test these hypotheses:Ho: There is no difference in the distribution of job status for all 9th, 10th, 11th, and 12th graders at this highschool.Hg: There is a difference in the distribution of job status for all 9th, 10th, 11th, and 12th graders at this highschool.The conditions for inference are met. What is the value of the chi-square test statistic and what are the degrees offreedom for this test?O x? = 4.71, df = 3O x? = 4.71, df = 7O x2 = 22.21, df = 3O x? = 22.21, df = 7

Answered: Image /qna-images/answer/b4ede6f4-e2d3-4656-9a5c-c06404b70961.jpg

Answered: A guidance counselor selected random…

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

Please help me with the follwing question.
What constitutes each pair in a paired sample?
A contributor for the local newspaper is writing an article for the weekly fitness section. To prepare for the story, she conducts a study to compare the exercise habits of people who exercise in the morning to the exercise habits of people who work out in the afternoon or evening. She selects three different health centers from which to draw her samples. The 57 people she sampled who work out in the morning have a mean of 4.8 hours of exercise each week. The 56 people surveyed who exercise in the afternoon or evening have a mean of 4.2 hours of exercise each week. Assume that the weekly exercise times have a population standard deviation of 0.8 hours for people who exercise in the morning and 0.3 hours for people who exercise in the afternoon or evening. Let Population 1 be people who exercise in the morning and Population 2 be people who exercise in the afternoon or evening. Step 1 of 2: Construct a 95 % confidence interval for the true difference between the mean amounts of time…
In the class poll from the beginning of the year, you were asked what color car you drive. The results are summarized below. aqua 3 beige/tan/gold 39 black 80 blue 44 green 21 orange 3 pink 1 purple 3 red 45 silver 63 white 74 yellow 1 What is the mode for this data set?
r ps://www.capit. State Water Reso... New Tab 5 https://usonyc.ta... The National Longitudinal Study of Adolescent Health interviewed several thousand teens (grades 7 to 12). One question asked was "What do you think are the chances you will be married in the next 10 years?" Here is a two-way table of the responses by gender: Opinion Almost no chance Some chance but probably not A 50-50 chance A good chance. Almost certain Female Male 129 115 145 185 427 498 739 710 1188 756 a. How many individuals are described in this table? b. How many females were among the respondents? c. The percent of females among the respondents was about d. Your percent from the previous exercise is part of O the marginal distribution of sex. O the marginal distribution of opinion about marriage. O the conditional distribution of sex among adolescents with a given opinion. e. What percent of females thought that they were almost certain to be married in the next 10 years?
Health insurance benefits vary by the size of the company (the Henry J. Kaiser Family Foundation website, June 23, 2016). The sample data below show the number of companies providing health insurance for small, medium, and large companies. For the purposes of this study, small companies are companies that have fewer than 100 employees. Medium-sized companies have 100 to 999 employees, and large companies have 1000 or more employees. The questionnaire sent to employees asked whether or not the employee had health insurance and then asked the enployee to indicate the size of the company. Health Insurance Size of Company Yes No Total Small 39 11 50 Medium 62 13 75 Large 88 12 100 Conduct a test of independence to determine whether health insurance coverage is independent of the size of the company. What is the -value? Compute the value of the x2 test statistic (to 2 decimals). A newspaper article…
ONLY PART C AND D PLEASE!
A middle school wanted to examine if students' sense of school belongingness increased after participating in a two-week after-school program. Thirty students were selected to participate in the after-school program. Prior to completing the program, students completed a measure of school belonging. At the end of the two-week program, students completed another measure of school belongingness. Students' scores before and after the program were then compared. What is the IV? O 30 participants (before and after) the two-week after-school program School belongingness O the middle school
In a sample of 500 parts produced by a grinding machine, 396 parts were defective. A test is performed to see whether we can conclude that less than 80% of the parts produced by this machine is defective.Which of the following is the value of the test statistic? a. -0.45 b. -0.22 c. 0.36 d. 0.45 e. -0.36
If 40% of all the students are taking four classes, and 60% of all the students are taking three classes, what is the mean (average) number of classes taken for this group of students?
Health insurance benefits vary by the size of the company (the Henry J. Kaiser Family Foundation website, June 23, 2016). The sample data below show the number of companies providing health insurance for small, medium, and large companies. For the purposes of this study, small companies are companies that have fewer than 100 employees. Medium-sized companies have 100 to 999 employees, and large companies have 1000 or more employees. The questionnaire sent to 225 employees asked whether or not the employee had health insurance and then asked the employees to indicate the size of the company. Health Insurance Size of Company Yes No Total Small 33 17 50 Medium 67 8 75 Large 89 11 100 Conduct a test of independence to determine whether health insurance coverage is independent of the size of the company. What is the p-value? Compute the value of the x2 test statistic (to 2 decimals) A newspaper article indicated…
In Exercises 33 to 36, determine whether or not the conditions for using two-sample t procedures are met. 33. Shoes How many pairs of shoes do teenagers have? To find out, a group of AP® Statistics students conducted a survey. They selected a random sample of 20 female students and a separate random sample Females 333 95 4332 66 410 8 9 100 7 0 0 4455 WW~~ 1 1 2 2 2 Males 4 3 555677778 0000124 3 58 Key: 22 represents a male student with 22 pairs of shoes.

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