Homework Answers
The answer is (1) all the necessary assumptions for unbiasdness of OLS estimators is satisfied. Since the students are randomly assigned to the the clasees - small, regular or large, there is no correlation with the error terms and there is no omitted variable bias. OLS interpretation has a causal inference as it is using some external variation to get the measure of effect on test score.
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Question 1: Each of the scenarios below represent situations in which (1) either all necessary assumptions...
Instructor Chain L Course: EC0 4000 Spring 201 Assignment FlPa the effect of ime pressure on final exam soores He gives each of the 400 ane fnal exam but some stuterts have 90 minules to complete...
Instructor Chain L Course: EC0 4000 Spring 201 Assignment FlPa the effect of ime pressure on final exam soores He gives each of the 400 ane fnal exam but some stuterts have 90 minules to complete the others ave 120 the number of 200, and consider mo regresuon model exwn (X'-90 or of the kutowing are tve about the unobservable u,? (Check ai hat apply etudents w necessarily have the same value of u, because they are part of the...
An accounting class of 250 students is allocated into several tutorials to be taken by either...
An accounting class of 250 students is allocated into several tutorials to be taken by either Tutor A and Tutor B. At the end of the semester the lecturer-in-charge looks at the distribution of marks by tutor. Table 1 provides this summary of the marks Table 1: Accounting student results according to their tutor Fail Credit Distinction Higher distinction 1 4 Pass Total Tutor A Tutor B Total 13 12 25 59 71 130 26 39 65 6 19 25...
**************ALL OF THE PARTS ARE FROM ONE QUESTION.**************** **********ALL OF THE PARTS ARE FROM ONE QUESTION.*********** (a) The mathematical ability of a random sample of 306 students were...
**************ALL OF THE PARTS ARE FROM ONE
QUESTION.****************
**********ALL OF THE PARTS ARE FROM ONE
QUESTION.***********
(a) The mathematical ability of a random sample of 306 students were as- sessed by means of a test. The test regards the mathematical ability of the student as either: low, medium or high. The handedness of each subject (right-handed of left-handed) was also recorded. The data is pre- sented in the table below. Low MediumHigh Total Left-handed19 393391 1 215 74 306 114...
Question 13 Given the scenario: A student takes one or more modules Each module is either...
Question 13 Given the scenario: A student takes one or more modules Each module is either a core or an elective. Identify the pair of classes that shows the relationship object composition Student and Module Module and Core Core and Elective None of the pairs of classes Question 14 5 p Which aspect of a widget can a geometry manager have an impact on? Size position state None of the above 5 pts Question 15 When is it necessary to...
1) Catching a cold during cold and flu season. For the two situations below, you can...
1) Catching a cold during cold and flu season. For the two situations below, you can only use the binomial and Poisson distributions for one or the other, meaning you will use a different distribution for the two scenarios. Justify your selection for which distribution to use for each scenario in your answer. i) Assume that you shake hands with 10 other students, and that each student has a 0.25 probability of having a cold. Compute the probability that you...
1) Catching a cold during cold and flu season. For the two situations below, you can...
1) Catching a cold during cold and flu season. For the two situations below, you can only use the binomial and Poisson distributions for one or the other, meaning you will use a different distribution for the two scenarios. Justify your selection for which distribution to use for each scenario in your answer. i) Assume that you shake hands with 10 other students, and that each student has a 0.25 probability of having a cold. Compute the probability that you...
CS 2050 – Programming Project # 1 Due Date: Session 3 (that is, in one week!)....
CS 2050 – Programming Project # 1 Due Date: Session 3 (that is, in one week!). Can be resubmitted up to two times until Session 6 if your first version is submitted by session 3. In this project, you create two classes for tracking students. One class is the Student class that holds student data; the other is the GradeItem class that holds data about grades that students earned in various courses. Note: the next three projects build on this...
Question 5.[15 marks] [Chapters 7 and 8] Data from a random sample of a recent large second semester stage 2 statistics course (STATS 20x) were collected. Below is some information on the variabl...
Question 5.[15 marks] [Chapters 7 and 8] Data from a random sample of a recent large second semester stage 2 statistics course (STATS 20x) were collected. Below is some information on the variables collected. Variable Grade The student's final grade for the course: A, B. C, D Pass Whether the student passed the course: Yes, No Programme The programme the student is enrolled in: BA, BCom BSc, Other Sex The student's sex: Female, Male ผhether the student regularly attended class:...
State whether each of the following are either always true (T) or not always true (F)
State whether each of the following are either always true (T)
or not always true (F)
(a) If you have two estimators for a parameter θ, with B(A) > B(92) and V(h) > V(92), then θ2 is consistent and θι is not consistent. (b) If Xi ~ Bernoulli(p) for i-: 1, , 1000, then Y-Σ21X, is normally distributed. (c) If you fail to reject a two-sided hypothesis test at the level a, then you wil also fail to reject a...
Part (V) to (Viii) An accounting class of 250 students is allocated into several tutorials to...
Part (V) to (Viii)
An accounting class of 250 students is allocated into several tutorials to be taken by either Tutor A and Tutor B. At the end of the semester the lecturer-in-charge looks at the distribution of marks by tutor. Table 1 provides this summary of the marks Table 1: Accounting student results according to their tutor Fail Credit Distinction Higher distinction 1 4 Pass Total Tutor A Tutor B Total 13 12 25 59 71 130 26 39...
Instructor Chain L Course: EC0 4000 Spring 201 Assignment FlPa the effect of ime pressure on final exam soores He gives each of the 400 ane fnal exam but some stuterts have 90 minules to complete the others ave 120 the number of 200, and consider mo regresuon model exwn (X'-90 or of the kutowing are tve about the unobservable u,? (Check ai hat apply etudents w necessarily have the same value of u, because they are part of the...
An accounting class of 250 students is allocated into several tutorials to be taken by either Tutor A and Tutor B. At the end of the semester the lecturer-in-charge looks at the distribution of marks by tutor. Table 1 provides this summary of the marks Table 1: Accounting student results according to their tutor Fail Credit Distinction Higher distinction 1 4 Pass Total Tutor A Tutor B Total 13 12 25 59 71 130 26 39 65 6 19 25...
**************ALL OF THE PARTS ARE FROM ONE
QUESTION.****************
**********ALL OF THE PARTS ARE FROM ONE
QUESTION.***********
(a) The mathematical ability of a random sample of 306 students were as- sessed by means of a test. The test regards the mathematical ability of the student as either: low, medium or high. The handedness of each subject (right-handed of left-handed) was also recorded. The data is pre- sented in the table below. Low MediumHigh Total Left-handed19 393391 1 215 74 306 114...
Question 13 Given the scenario: A student takes one or more modules Each module is either a core or an elective. Identify the pair of classes that shows the relationship object composition Student and Module Module and Core Core and Elective None of the pairs of classes Question 14 5 p Which aspect of a widget can a geometry manager have an impact on? Size position state None of the above 5 pts Question 15 When is it necessary to...
1) Catching a cold during cold and flu season. For the two situations below, you can only use the binomial and Poisson distributions for one or the other, meaning you will use a different distribution for the two scenarios. Justify your selection for which distribution to use for each scenario in your answer. i) Assume that you shake hands with 10 other students, and that each student has a 0.25 probability of having a cold. Compute the probability that you...
1) Catching a cold during cold and flu season. For the two situations below, you can only use the binomial and Poisson distributions for one or the other, meaning you will use a different distribution for the two scenarios. Justify your selection for which distribution to use for each scenario in your answer. i) Assume that you shake hands with 10 other students, and that each student has a 0.25 probability of having a cold. Compute the probability that you...
Question 5.[15 marks] [Chapters 7 and 8] Data from a random sample of a recent large second semester stage 2 statistics course (STATS 20x) were collected. Below is some information on the variables collected. Variable Grade The student's final grade for the course: A, B. C, D Pass Whether the student passed the course: Yes, No Programme The programme the student is enrolled in: BA, BCom BSc, Other Sex The student's sex: Female, Male ผhether the student regularly attended class:...
State whether each of the following are either always true (T)
or not always true (F)
(a) If you have two estimators for a parameter θ, with B(A) > B(92) and V(h) > V(92), then θ2 is consistent and θι is not consistent. (b) If Xi ~ Bernoulli(p) for i-: 1, , 1000, then Y-Σ21X, is normally distributed. (c) If you fail to reject a two-sided hypothesis test at the level a, then you wil also fail to reject a...
Part (V) to (Viii)
An accounting class of 250 students is allocated into several tutorials to be taken by either Tutor A and Tutor B. At the end of the semester the lecturer-in-charge looks at the distribution of marks by tutor. Table 1 provides this summary of the marks Table 1: Accounting student results according to their tutor Fail Credit Distinction Higher distinction 1 4 Pass Total Tutor A Tutor B Total 13 12 25 59 71 130 26 39...
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