A middle school was interested in surveying theirstudents to find out opinions about the schoolsmedia center. To facilitate data collection, thehomeroom period was extended 30 minutes toallow everyone in the school ample time to respondto a short questionnaire. Unfortunately, it waslearned after the surveys had been completed thatall honors students in the middle school were on anall-day field trip and away from school for theentire day. The exclusion of their input into thesurvey would be considered which type ofsampling problem?

To draw a conclusion for the school media center through some survey, it is to be considered that…

Answered: A middle school was interested in…

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

A tutor who teaches four tutorials is interested in exploring whether certain colours are better than others for student learning. To test this, she designed an experiment to see whether different colour PowerPoint slides impact students’ final exam grades. Each of the tutor’s four tutorials were presented with a different colour background in the PowerPoint slides throughout the semester (red, blue, yellow or green). The average final exam grade for each class was measured. What test would the tutor use to determine whether there were any differences in final exam grades between the classes? One-way independent groups ANOVA Repeated measures ANOVA Pearson's correlation Independent groups t-test
The Consumer Reports Restaurant Customer Satisfaction Survey is based upon 148,599 visits to full-service restaurant chains (Consumer Reports website). One of the variables in the study is meal price, the average amount paid per person for dinner and drinks, minus the tip. Suppose a reporter for the Sun Coast Times thought that it would be of interest to her readers to conduct a similar study for restaurants located on the Grand Strand section in Myrtle Beach, South Carolina. The reporter selected a sample of 8 seafood restaurants, 8 Italian restaurants, and 8 steakhouses. The following data show the meal prices ($) obtained for the 24 restaurants sampled. Use a = 0.05 to test whether there is a significant difference among the mean meal price for the three types of restaurants. Please answer the questions in the image.
A school psychologist wants to test the effectiveness of a new method of teaching biologybiology. She recruits 500500 firstfirst-grade students and randomly divides them into two groups. Group 1 is taught by means of the new method, while group 2 is taught by traditional methods. The same teacher is assigned to teach both groups. At the end of the year, an achievement test (graded on a scale from 1-10) is administered and the results of the two groups are compared. Complete parts (a) through (i) below.(a) What is the response variable in this experiment? A.The scores on the achievement tests of both group 1 and group 2 B.The students' ability in biologybiology C.The score of group 1 on the achievement test D.The score of group 2 on the achievement test (b) Is the response variable qualitative or quantitative? A.The response variable is quantitative because it is a measurement. B.The response variable is quantitative because it is a characteristic. C.The response variable is…
In a 4 point grade system, an A is worth 4 points, a B is worth 3 points, a C is worth 2 points and a D is worth 1 point. No points are awarded for an F. Last semester Tanya received a B in a 4 credit hour course, an A in a three credit hour course, a C in a three credit hour course, and an A in another three credit hour course. Grade point average (GPA) is calculated as a weighted average using the credit hours as weights and the number of points corresponding to the grades as pieces of data. Calculate Tanya's GPA for the previous semester. Round your answer to the nearest hundredth and explain in complete sentences your process. Show all work.
PART C. Records in the country show that six out of 10 convicted offenders were reconvicted 10 years after being released. Officer Chimmy, the head of a rehabilitation program at a local prison, wishes to determine if its program has been successful compared to the records in the country. He then observed a random sample of 68 convicted offenders who participated in the local ultimatearm from prison's rehabilitation program and were later released. The proportion out of these numbers who Icon made by www.flaticon.com were reconvicted 10 years after being released was recorded. Formulate the appropriate null and alternative hypotheses in symbols and words. Но: ;The of the convicted offenders who participated in the local prison's rehabilitation program who were reconvicted 10 years after being released is На: ;The of the convicted offenders who participated in the local prison's rehabilitation program who were reconvicted 10 years after being released is
You are an education researcher interested in studying if race or ethnicity affects the severity of punishment children receive. Through open records, you are able to collect from several high schools the length of suspensions given to kids for fighting along with the race/ethnicity of the child. The state of Texas divides school children into one of 7 race/ethnicity groups: African American, American Indian, Asian, Hispanic, Pacific Islander, White, or Multiracial. You want to compare the average length of suspension among these 7 groups. Which statistical test would be best to determine if there is a significant difference in the severity of punishment among the different groups? one-sample t-test related samples t-test independent samples t-test ANOVA
If using Excel, please show work. Help me fast.....I will give Upvote....
A psychologist wanted to know if students in her class were more likely to cheat if they were low achievers. She divided her 60 students into three groups (low, middle, and high) based on their mean exam score on the previous three tests. She then asked them to rate how likely they were to cheat on an exam if the opportunity presented itself with a very limited chance for consequences. The students rated their desire to cheat on a scale ranging from 1-100, with lower numbers indicating less desire to cheat. Before opening the data, what would you hypothesize about this research question? Open the data set. Before running any statistical analyses, glance through the data. Do you think that your hypothesis will be supported? Conduct descriptive analyses and report them here. Conduct a one-way ANOVA. Report your statistical findings (including any applicable tables in APA format) here. What would you conclude from this analysis? What would be your next steps, if this…
We want to investigate the average study time per day of School students. The official number of School students is 20,000. We have collected data using the actual contact number of School students. It contains individual-level information on the study hours per day. The number of observations in a data set is 20,000. The same person has not been collected more than once in this data. According to this data, the average study time per day of School students is 3 hours and 20 minutes. 1.what's unique about this data 2.how do you perform your own hypothesis test using this data?
A researcher conducts a study comparing anxiety levels in teens based on their social media usage. Teens with higher scores on the anxiety measure are considered more anxious. Below is a table made from their results. Briefly interpret the results by explaining both descriptive and inferential statistics identified.
The Student Union President conducted a survey to estimate the proportion of first year students who participated in the social activities organized by the Student Union. Which of the following surveying options does NOT affect the presidents ability to generalize the survey to all first year students. The president put the survey on the Student Union webpage a Monday and collected the responses at the end of the week. All of the other options present a problem for generalizing the results. The president polled all students coming out of the Student Union on a given Monday. The freshmen class consists of 3000 students. A random sample of only 300 were sent a survey. Only 150 responded. The survey was sent only to first year students enrolled in statistics courses because all students need to satisfy a statistics general education requirement.
A researcher plans to compare two treatment conditions by measuring one sample in treatment 1 and a second sample in treatment 2. The researcher then compares the scores for the two treatments and finds a difference between the two groups. Briefly explain how the difference may have been caused by the treatments. Briefly explain how the difference simply may be sampling error

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