5. DEPED conducted a study in QC to know ifschool can be a factor that affects the GWA ofgrade 10 students. Among the 10,000 studentsfrom different public schools in all districts of QC,500 were included through cluster sampling. Itwas found out that there is a significantdifference between the GWA of grade 10students and their respective school.A. Descriptive or InferentialB. PopulationC. SampleD. Variable/s involved (Indicate the IV &DV if possible)E. Level of measurement (Variable/s)6. Indicate whether the following isvariable or constant.A. Numbers of letters in alphabetB. Number of hours in a dayC. Time at which you eat dinnerD. Number of students enrolled inPsychologyE. Number of centimeters in a meter

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A sample of employees at a large chemical plant was asked to indicate a preference for one of three pension plans. The results are given in the following table. Does it seem that there is a relationship between the pension plan selected and the job classification of the employees? Use the 0.02 significance level. Pension Plan Job Class Plan A Plan B Plan C Supervisor 27 53 51 Clerical 44 33 55 Labor 53 50 21 Click here for the Excel Data File a. State the decision rule. Use 0.02 significance level. (Round your answer to 3 decimal places.) H0: Pension plan preference and job class are not related.H1: Pension plan preference and job class are related. b. Compute the value of chi-square. (Round your answer to 3 decimal places.)
Consider the following random sample of data: -7, 5, -1, -1, 8, 1, 7, -4, 8, 80 a) What is the mean of the sample data? Round your response to at least 2 decimal places. Number b) If the outlier is removed, what is the mean of the remaining sample data? Round your response to at least 2 decimal places. Number
The city council of Pine Bluffs IS considering Increasing the number of pollice in an effort to reduce crime. Before making a final decision, the council asked the chief of police to survey other citles of simllar size to determine the relationship between the number of pollice and the number of crimes reported. The chlef gathered the following sample Information. Number of Number of City Oxford Police Crimes City Holgate Carey Whistler Police Crimes 20 18 21 10 Starksville Danville 21 16 17 22 28 9 16 24 Athens 30 12 Woodville 25 10 PpictureClick here for the Excel Data File a. Determine the regression equation. (Negative amounts should be Indicated by a mlnus slgn. Round your answers to 4 declmal places.) ý = b. Estimate the number of crimes for a city with 24 pollce officers. (Round your answer to the nearest whole number.) Number of crimes c. Interpret the regression equation. For each policeman added, the number of crimes goes by one.
Consider the following random sample of data: 5, 10, 2, 4, 4,-4, -7, -5, 8, 84 a) What is the mean of the sample data? Round your response to at least 2 decimal places. Number b) If the outlier is removed, what is the mean of the remaining sample data? Round your response to at least 2 decimal places. Number
A researcher wants to investigate whether the education level is related to his or her place of residence. Hundred's people were selected randomly. The results are given as follow. Area * Education Level Crosstabulation Education Level Bachelor's SPM Diploma Degree Total Area Urban Count 22 10 18 50 Expected Count 25.0 8.0 17.0 50.0 Rural Count 28 16 50 Expected Count 25.0 8.0 A 50.0 Total Count 50 16 34 100 Expected Count 50.0 16.0 34.0 100.0 Chi-Square Tests Value df Pearson Chi-Square в 2 Likelihood Ratio 1.850 2 Linear-by-Linear Association .778 1 N of Valid Cases a. O cells (0.0%) have expected count less than 5. The 100 minimum expected count is 8.00. a) State a reason of choosing the Chi-Square Test of Independence for this study. b) Calculate the values of A and B. c) At the 5% significance level, test whether education level is associated to his or her place of residence.
local cabinet shop wants to determine the effect of adhesive brands on thebonding of veneer to the side of cabinets. Four different brands of adhesive wereapplied to glue veneer to random samples of cabinet ends. The treatments wereidentical except for the brand of adhesive. Which of the following is thedependent variable in this study? A. brands of adhesive B. bonding veneer C. cabinet ends D. four different brands
Papapa
A curious student wants to see if she can conclude that a higherproportion of Woodland College students transfer to Sac State than Yuba College students. He samples 82 Woodland College students and finds that 23 of them transferred to Sac State. He also samples 95 Yuba college students and finds that 21 of them transferred to Sac State. What can be concluded at a 5% significance level? Use the pvalue approach.
The city council of Pine Bluffs is considering increasing the number of police in an effort to reduce crime. Before making a final decision, the council asked the chief of police to survey other cities of similar size to determine the relationship between the number of police and the number of crimes reported. The chief gathered the following sample information. City Police Number of Crimes City Police Number of Crimes Oxford 15 19 Holgate 17 10 Starksville 17 16 Carey 11 23 Danville 25 8 Whistler 9 27 Athens 28 10 Woodville 21 10 Click here for the Excel Data Filea. Determine the regression equation. (Negative amounts should be indicated by a minus sign. Round your answers to 4 decimal places.) b. Estimate the number of crimes for a city with 20 police officers. (Round your answer to the nearest whole number.)
M2
To test whether there is a difference in the quality of some ballpoint pens produced by Scribulus, Writine, and Fantapen, random samples from each brand were purchased and the following data were collected: Scribulus Writinc Fantapen number purchased failed to write 41 29 16 300 250 200 Use a 5% level of significance to test whether there is any difference in quality measured by the proportion of pens that failed to write.

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