4. [Test for Independence) A research conducted by the Criminology Department of University of Pangasinan involvesthe crime situations of the four cities of Pangasinan province. Based on their interviews among selected citizens in thesecities on their levels of concern, crime was classified as a major concern, a minor concern, or of no concern for eachindividual interviewed. The results are shown in the table below. Use 2 decimal places in your computations.Alaminos CitySan Carlos CityUrdaneta CityConcernMajorDagupan City4035Minor4540No Concern1015Ha:If the level of concern regarding crime is independent of each of the cities in Pangasinan province, statethe null and alternative hypotheses.Ho:Find the expected frequencies for the 12 cells below. Show calculation for each cell.ConcernAlaminos CityDagupan CityMajorMinorNo ConcernColumn TotalFill up the cells in the table below.City0Alaminos256515DagupanSan CarlosUrdanetaCalculate the degrees of freedom, df.What is your decision? Use a 0.05.404020San Carlos City Urdaneta City Row TotalE(O-E)(O-E)²/E

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Answered: 4. [Test for Independence) A research…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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On a survey, people are classified with the following variable: 0: identify as male 1: identify as female 2: identify as non-binary 3: other How would you classify this variable? a. Qualitative and discrete b. Qualitative and ratio c. Quantitative and discrete d. Quantitative and interval e. None of these
A polling company reported that 53% of 2302 surveyed adults said that they play football. Complete parts (a) through (d) below. a. What is the exact value that is 53% of 2302? The exact value is (Type an integer or a decimal.) b. Could the result from part (a) be the actual number of adults who said that they play football? Why or why not? OA. Yes, the result from part (a) could be the actual number of adults who said that they play football because the polling numbers are accurate. OB. No, the result from part (a) could not be the actual number of adults who said that they play football because that is a very rare activity. OC. Yes, the result from part (a) could be the actual number of adults who said that they play football because the results are statistically. significant. O D. No, the result from part (a) could not be the actual number of adults who said that they play football because a count of people must result in a whole number. c. What could be the actual number of adults…
Read the following on attendance and grades, and answer the questions. A study revealed that students from a certain local college in Bulacan who attended class 95 to 100% of the time usually received a grade of 1.0 in the class. Students who attended class 80 to 90% of the time usually received a 1.5 or 1.75 in the class. Students who attended class less than 80% of the time usually received a 3 or a 5 or eventually withdrew from the class. Many factors affect a student’s grade in a course. One factor that has considerable control over is attendance. One can increase the opportunities for learning by attending class more often. 1. What are the variables under study? Answer: 2. Which are the dependent and independent variables in the study? Answer: 3. Categorize each variable as quantitative or qualitative. Answer: 4. Categorize each quantitative variable as discrete or continuous. Answer: 5. Identify the level of measurement for each variable. Answer: 6. Are descriptive,…
d. Check that calculating appropriate weighted average of your answers in parts b and c gives the answer you found in part a
Round up to the nearest integer for a-b.
Please answer e,f,g based on the question. Please use manual computation and not in EXCEL form.
2. A contractor on the Eastern Corridor road makes a large purchase of industrial cement from Ghacem. Each bag of this industrial cement is supposed to weigh 94 pounds. To see if he is getting his money's worth, the contractor weighs 10 randomly selected bags and gets the following weights (in pounds): 94.1, 93.4, 92.8, 93.4, 95.4, 93.5, 94.0, 93.8, 92.9, 94.2 (a) What are the appropriate null and alternative hypotheses to be tested? (b) State the assumption that is necessary for performing the test. STAT 223 EXERCISE Page 1 of 2 RM-GROUP (c) Calculate the p- value of the test. Perform the test at a significance level of a = 0.1.
Read the following on attendance and grades, and answer the questions. A study revealed that students from a certain local college in Bulacan who attended class 95 to 100% of the time usually received a grade of 1.0 in the class. Students who attended class 80 to 90% of the time usually received a 1.5 or 1.75 in the class. Students who attended class less than 80% of the time usually received a 3 or a 5 or eventually withdrew from the class. Many factors affect a student’s grade in a course. One factor that has considerable control over is attendance. One can increase the opportunities for learning by attending class more often. a. From the information given, comment on the relationship between the variables Answer: b. What type of survey do you think is most appropriately used for the study? Answer: c. Do you think the use a random method for deciding who would be in the sample is appropriate? Why? Answer:
B. Read the given article/texts carefully. Then, complete the table and answer the questions that follow, Essential Question Text 1 Text 2 Text 3 The computer terminals in a school are labeled 1 to 300, The technician wants to know if the computers are in good working condition by testing 50 of these units. He randomly selects the 12th to be the first unit to be tested. Which computer unit will be tested next? Fifty people were surveyed The table shows the on the number of full-length frequency count of the employees' responses to the survey of employees' satisfaction level. A numerical rating of 5 is assigned to very satisfied (VS), 4 to satisfied (S), 3 to neutral (N), 2 to somewhat dissatisfied (SD), and 1 to very dissatisfied (VD). Number of Employces 25 movies watched in a year. Number of Movies Watched 19-21 16-18 13-15 Number of Регsons 1 5 7 10-12 7-9 8 4-6 0-3 At least how many movies should one watch to belong to upper 5th percentile? 12 15 Level of Satisfaction VS (5) S (4)…
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On the following pages you are presented with five problems. Your job is to examine the output and discuss whether there is a statistically significant relationship between the two variables, the pattern or direction of the relationship if the relationship is significant, and the strength of the relationship if the relationship is significant. AS you discuss the strength of the relationship, you will rely on an appropriate measure of association from those that have been given. For that determination, you will need to appropriately determine the level of measurement of each of the variables being examined. Please use the Measures of Association Chart I provided to help you with your determination. You may write your responses on a separate document or next to the problems on this one.
A campus survey asked 750 university students which meal (breakfast, lunch, dinner) they ordered the most often from the school cafeteria. A.) What is the variable? - is it Meal? B.) What kind of variable is it? - is it ordinal? C.) What is the population of this study? Is it descriptive statistics?

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