Student/606df845214c45ed11a37021#screenldx310Q8: Use the data from screen #78) Given the results from the chi-square test, whatshould the research team conclude?Share with Class Helcampo03@gmail.c Xbd AP Stats Chi Square ReviewO https://student.desmos.com/activitybuilder/student/606df845214c45ed11a37021#screenldx=7Chi Square Review70Use this information to answer the next four questionsA medical research team at a certain university wasinterested in the effect of daily exercise on stress levelin students. To obtain some information, the teamsurveyed a simple random sample of 400 of the morethan 35,000 students attending the university. Eachstudent reported the average number of hours spentexercising each week and his or her perception of theeffect of exercise on stress level. The data in the tablebelow summarize the students' responses by averagenumber of hours exercising per week (less than 5, 5 to7, more than 7) and the perception of the effect ofexercise on stress level (positive, no effect, negative).Average Time Spent Exercising5 to 7 HoursLess Than 5Hours per WeekMore Than 7Hours per Weekper WeekPositive Effect8710235Perception of theEflect of Exercise onStress LevelNo Effect9536Negative Effect2013A chi-square test was used to determine if there is an association between the effect ofexercise on stress level and the average number of hours per week that students spentexercising. Computer outputresulted from performing this test is shown below.CHI-SQUARE TESTExpected counts are printed below observed countsS-7>735TotalPositive8710279.523649 145224113.1231.36No effeet9513970.1952018.68520219.46Negative413.135142135.185637Total400Chi-Sy = 50.1832, DF=4, P-Value = 3.306x10"ere to searcha.

8. From the output, The test statistic is 50.1832. p value is 0.0000. Decision Rule: If p-value ≤…

Answered: Given the results from the chi-square…

Math

Statistics

Given the results from the chi-square test, what nould the research team conclude?

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

For each of the following scenarios, select the test (from the choices below), that is most appropriate for analyzing the data. a) Z-test b) One-sample t-test c) Independent t-test d) Dependent t-test e) 1-Way ANOVA f) Regression/Correlation g) Chi-Square 1. A psychologist wants to know if children with a schizophrenic parent are less well-adjusted than the general population, so she gives 20 children of schizophrenics a measure of psychological adjustment which has a mean of 35 in the general population. 2. A researcher wants to know if 5-yr-old boys and girls differ in their social skills. He recruits 30 brother and sister pairs and administers a social skills inventory with scores that can range from 0 to 80. 3. A sample of 60 children are asked to choose their favorite toy among 3 options (stuffed bear, stuffed dog, stuffed cat). Do children prefer these 3 toys equally?
A professor believes that, in recent years, the ethnic composition of the students in the university has changed. According to the data collected a few years ago, there were 70% of students from European origins, 20% Asian origins, 5% Indigenous, and 5% Others. To test his belief, he randomly sampled 500 students and recorded their ethnicity as shown below: European 318 Asian 132 Indigenous 25 Others 25 The professor conducted a chi-squared goodness-of-fit test. Which of the following is the obtained chi-squared statistic for this test? A. 5.1443 B. 8.7898 C. 0.2288 D. 13.1657 E. 10.9777
A sample of n=25 scores is obtained from a population with u=70 and o=25. If the sample mean is M=75, then what is the z-score corresponding to the sample mean?
How do I solve questions A-E?
Previous studies have shown that playing video games can increase visual perception abilities on tasks presented in the gaming zone of the screen (within 5 degrees of the center). A graduate student is interested in whether playing video games increases peripheral visual perception abilities or decreases attention to peripheral regions because of focus on the gaming zone. For her study, she selects a random sample of 64 adults. The subjects complete a difficult spatial perception task to determine baseline levels of their abilities. After playing an action video game (a first-person combat simulation) for 1 hour a day over 10 days, they complete the difficult perception task for a second time. Before playing the action video game, the mean score in their accuracy on the spatial task was 0.42. After playing the action video game, the mean score was -0.08. The mean of the differences between each person's pre- and postscores was 0.5, with a standard deviation of the differences equal to…
E) what other questions might this raise about the results ?
Previous studies have shown that playing video games can increase visual perception abilities on tasks presented in the gaming zone of the screen (within 5 degrees of the center). A graduate student is interested in whether playing video games increases peripheral visual perception abilities or decreases attention to peripheral regions because of focus on the gaming zone. For her study, she selects a random sample of 64 adults. The subjects complete a difficult spatial perception task to determine baseline levels of their abilities. After playing an action video game (a first-person combat simulation) for 1 hour a day over 10 days, they complete the difficult perception task for a second time. Before playing the action video game, the mean score in their accuracy on the spatial task was 0.42. After playing the action video game, the mean score was -0.08. The mean of the differences between each person's pre- and postscores was 0.5, with a standard deviation of the differences equal to…
A psychologist would like to examine the effects of different testing methods on the final performance of college students. One group has regular quizzes, one group has three large exams, and the third group only has a final exam. At the end of the course, the psychologist interviews each student to get a measure of the student's overall knowledge of the material. Do these data indicate any significant differences among the three methods? Do the following computations: a. Compute and report the F Ratio at a a = .05 b. Compute and report the Tukey's HSD to determine exactly which methods are significantly different. Quizzes 4 6 3 7 T = 20 SS = 10 Exams 1 4 5 2 T = 12 SS= 10 Final Only 0 2 0 2 T=4 SS=4 G=36 EX² = 164 ✩
Mr. Bates wants to compare the midterm scores of his students who took the course during the fall semester versus the spring semester. Here is the data: Fall 89 86 64 91 72 94 87 83 86 90 74 59 87 97 87 Spring 76 70 82 94 76 66 72 51 75 97 74 81 85 96 74 Can he say that there was a significant difference between his fall and spring students? (Use α = .10)
The effectiveness of surgery for weight loss reported here found that "The surgery was associated with significantly greater weight loss [than the control group who dieted] through 2 years (61.3 versus 11.2 pounds, P<0.001)." What test could have been used and how would it have been computed?
ANSwer part b in frq style and descriptive
I need #4 answered