Situation 1. To find out the effectiveness of a Strategic Intervention Material, Mrs. Lunes conducted apretest and a posttest in a Mathematics class. In between the tests was the administration of the said SIM.If the students obtained the following scores, perform the tasks asked in the directions.Pretest (50 items)32Posttest (50 items)Student1352530318332943352523292873842840389.2816401022111522121012132622302914201546State the null hypothesis;Determine the level of measurement of the variables under study;Choose the statistical tool appropriate to test the hypothesis;Specify a significance level and the sample size;Identify the degree of freedom;Set the critical value;а.b.с.d.е.f.g.h.Compute the value of the statistical test;Determine the significance of the computed value; andInterpret and discuss the result.i.

Given information: Student Pretest Post test 1 32 35 2 25 30 3 18 29 4 33 33 5 25 23…

Answered: Situation 1. To find out the…

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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In the Focus Problem at the beginning of this chapter, a study was described comparing the hatch ratios of wood duck nesting boxes. Group I nesting boxes were well separated from each other and well hidden by available brush. There were a total of 463 eggs in group I boxes, of which a field count showed about 280 hatched. Group II nesting boxes were placed in highly visible locations and grouped closely together. There were a total of 812 eggs in group II boxes, of which a field count showed about 274 hatched. (a) Find a point estimate p̂1 for p1, the proportion of eggs that hatch in group I nest box placements. (Round your answer to three decimal places.)p̂1 = Find a 99% confidence interval for p1. (Round your answers to three decimal places.) lower limit upper limit (b) Find a point estimate p̂2 for p2, the proportion of eggs that hatch in group II nest box placements. (Round your answer to three decimal places.)p̂2 = Find a 99% confidence interval for p2. (Round…
In the Focus Problem at the beginning of this chapter, a study was described comparing the hatch ratios of wood duck nesting boxes. Group I nesting boxes were well separated from each other and well hidden by available brush. There were a total of 489 eggs in group I boxes, of which a field count showed about 272 hatched. Group II nesting boxes were placed in highly visible locations and grouped closely together. There were a total of 821 eggs in group II boxes, of which a field count showed about 262 hatched. (a) Find a point estimate p̂1 for p1, the proportion of eggs that hatch in group I nest box placements. (Round your answer to four decimal places.) p̂1 = Find a 95% confidence interval for p1. (Round your answers to three decimal places.) lower limitupper limit (b) Find a point estimate p̂2 for p2, the proportion of eggs that hatch in group II nest box placements. (Round your answer to four decimal places.) p̂2 = Find a 95% confidence interval for p2. (Round your…
QUESTION 2 A research design where one group is tested in one conditions and another group is tested in another condition is called ______. a. matched-pair design b. between-subjects design c. twin study d. within-subjects design
It describes a scenario in which a math teacher named Matt allows his students to use a 1-page reference sheet during exams, and compares the effectiveness of this method to a colleague's method of providing a pre-made reference sheet for students.
The answer to each of the following questions will be one of the points labeled A-H on the scatterplot. (i) Of the sales that received lower-than-predicted tips, which one had the lowest sale amount? [ Select ] ["D", "E", "A", "B", "F", "H", "G", "C"] (ii) Which sale received the best tip, that is, which sale had the tip that was highest above the tip predicted for it? [ Select ] ["A", "B", "D", "E", "C", "G", "H", "F"] (iii) Which data point has the smallest residual? [ Select ] ["A", "C", "F", "H", "D", "G", "B", "E"] (iv) Of E and F, the model makes a better prediction for [ Select ] ["E", "F"] .
Problem 2: (Revised 6.3) Magazine Advertising: In a study of revenue from advertising, data were collected for 41 magazines list as follows. The variables observed are number of pages of advertising and advertising revenue. The names of the magazines are listed as: (use sas） Magazine P R Cosmopolitan 25 50 Redbook 15 49.7 Glamour 20 34 Southern Living 17 30.7 Vogue 23 27 Sunset 17 26.3 House and Garden 14 24.6 New York Magazine 22 16.9 House Beautiful 12 16.7 Mademoiselle 15 14.6 Psychology Today 8 13.8 Life Magazine 7 13.2 Smithsonian 9 13.1 Rolling Stone 12 10.6 Modern Bride 1 8.8 Parents 6 8.7 Architectural Digest 12 8.5 Harper's Bazaar 9 8.3 Apartment Life 7 8.2 Bon Appetit 9 8.2 Gourmet 7 7.3 Town and Country 1 7 True Story 77 6.6 Brides 13 6.2 Book Digest Magazine 5 5.8 W 7 5.1 Yankee 13 4.1 Playgirl 4 3.9 Saturday Review 6 3.9…
Problem 2: (Revised 6.3) Magazine Advertising: In a study of revenue from advertising, data were collected for 41 magazines list as follows. The variables observed are number of pages of advertising and advertising revenue. The names of the magazines are listed as: (use sas） Magazine P R Cosmopolitan 25 50 Redbook 15 49.7 Glamour 20 34 Southern Living 17 30.7 Vogue 23 27 Sunset 17 26.3 House and Garden 14 24.6 New York Magazine 22 16.9 House Beautiful 12 16.7 Mademoiselle 15 14.6 Psychology Today 8 13.8 Life Magazine 7 13.2 Smithsonian 9 13.1 Rolling Stone 12 10.6 Modern Bride 1 8.8 Parents 6 8.7 Architectural Digest 12 8.5 Harper's Bazaar 9 8.3 Apartment Life 7 8.2 Bon Appetit 9 8.2 Gourmet 7 7.3 Town and Country 1 7 True Story 77 6.6 Brides 13 6.2 Book Digest Magazine 5 5.8 W 7 5.1 Yankee 13 4.1 Playgirl 4 3.9 Saturday Review 6 3.9…
Problem 2: (Revised 6.3) Magazine Advertising: In a study of revenue from advertising, data were collected for 41 magazines list as follows. The variables observed are number of pages of advertising and advertising revenue. The names of the magazines are listed as: (use sas） Magazine P R Cosmopolitan 25 50 Redbook 15 49.7 Glamour 20 34 Southern Living 17 30.7 Vogue 23 27 Sunset 17 26.3 House and Garden 14 24.6 New York Magazine 22 16.9 House Beautiful 12 16.7 Mademoiselle 15 14.6 Psychology Today 8 13.8 Life Magazine 7 13.2 Smithsonian 9 13.1 Rolling Stone 12 10.6 Modern Bride 1 8.8 Parents 6 8.7 Architectural Digest 12 8.5 Harper's Bazaar 9 8.3 Apartment Life 7 8.2 Bon Appetit 9 8.2 Gourmet 7 7.3 Town and Country 1 7 True Story 77 6.6 Brides 13 6.2 Book Digest Magazine 5 5.8 W 7 5.1 Yankee 13 4.1 Playgirl 4 3.9 Saturday Review 6 3.9…
Postpositivist research has each of the following characteristics except: Group of answer choices Multiple realities Collaboration with participants Focus on subjective meanings Belief in multiple perspectives Focus on cause and effect
Question 1: The University of Professional Studies, Accra (UPSA) aims to evaluate students’ academic performance. In line with this, you have been appointed as a Consultant to work on the project. The University would want to ascertain how age, gender, work experience, interim assessment scores and examination scores influence students’ overall academic performance. In doing so, you are required to provide answers to the following issues to the University in simple, clear and concise form. As much as possible, provide justification for the choice of your answers. a. Formulate a topic for this project b. State the dependent variable and THREE Independent variables you would consider for the study. c. Identify the population you would use in the conduct of the study. Give reasons for the choice of the population.…
Create a two-way table for the variables Eye Color and Organ Donors. What percentage of organ donors have green eyes? What percentage of non-donors have brown eyes? What percentage of blue-eyed students are organ donors? Hz Bro Bro Blu Hz Bro Bro Bro Bro Bro Blu Bro Hz Gr Blu Bro Gr Blu Bro Bro N Y Y N N Y N N Y N Y Y Y Y Y Y N N Y Y
*MUST SHOW ALL STEPS OF HYPOTHESIS TEST* Problem 12 (part a and c). Many animals, including humans, tend to avoid direct eye contact and even patterns that look like eyes. Some insects, including moths, have evolved eye-spot patterns on their wings to help ward off predators. Scaife (1976) reports a study examining how eye-spot patterns affect the behavior of birds. In the study, the birds were tested in a box with two chambers and were free to move from one chamber to another. In one chamber, two large eye-spots were painted on one wall. The other chamber had plain walls. The researcher recorded the amount of time each bird spent in the plain chamber during a 60-minute session. Suppose the study produced a mean of M =37 minutes in the plain chamber with SS = 288 for a sample of n = 9 birds. (Note: If the eyespots have no effect, then the birds should spend an average of μ=30 minutes in each chamber.) Is this sample sufficient to conclude that the eye-spots have a significant…

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