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Hey everyone, I wanted to ask whether anyone had successfully applied for an exemption from CT3 (old syllabus) POST 2014, or CS1 (new syllabus),...
" h" is the small time interval. What is the significance of f(h) in 'process counting'... Please see the attachment below.. Ned help ..
It's been a few weeks since the exam, but how did you find it?
Hi, In one of the mark schemes of a past paper, the examiner uses the following result to derive the C.I using the F-distribution (see attached)....
Hi, from the CT6 tuorial videos a MGF is given as (5-4e^t)^-1. Now i can recognise that this is a MGF for a negative binomial but I am finding it...
Hi, I am picking up maths after 14 years. I am brushing my maths up till Class 12th Level. Unsure what level of maths will I confront through out...
At what Percentage shall we test the Test Statistic, if not mentioned in the question? Sometime they take 0.5%,1% or 5%
In chi-sequre test of contingency table, is appropriate to perform test without clubbing up expected values which are less than 5?? I mean in exam...
Can anyone help me to understand this question? Doubt: This is given that 10 cards are assigned randomly One of the 5 different patterns. So...
To determine estimate we are asked to use cumulative Probability from table or otherwise find approximate estimate by trial and error. What...
In this question, I believe there is typo while obtaining confidence interval of T distribution. It is given T13,0.05/14 which is incorrect , it...
In Q&A part 3 Hi All, Can anyone review and confirm below query My understanding about not putting Summation to X in question 3.12 is that x is...
Question 7b) In the solution, while calculating the likelihood function, P(yi=1) and p(yi=0) are raised to the power yi and 1-yi respectively? Why?
Question and Answer bank Part 4 Question 4.1 A statistical test is used to determine whether or not an anti smoking campaign carried out 5...
In this question Xmax and Xmin distribution are required to obtain. The definition for Xmax would be sufficient for exam prospective? Another...
In This question an alternative approach is given to find MGF. Is it appropriate as per exam prospective to obtain full marks on question? I...
In this question part (iii) a What is the reason to use degree of freedom 5-1-1=3 instead of using 5-1=4 since parameter value is given we didn't...
Question 3.23 Question Bank, Part 3 question 3.23 i) Why do we use two ln in the product of(250+x) term, while taking ln of L(alpha) how...
In the given question (ii), cant we use the formula ((n1-1)s1^2+(n2-1)s2^2)/(n1+n2-2)? On using the above formula, I got 62.05 which is nowhere...
How do we judge normality by using a dot plot? What more useful inferences can be made from a dot plot? [ATTACH]
Question 3.5 Write an expression for the likelihood of obtaining exactly 10 numbers in each of the intervals (0, 0.1), (0.1, 0.2), …, (0.9, 1)...
Hi, This is regarding to get an idea about the examiner marking in exam CT3. As this subject has lenthy question and more chances errors in...
In problems involving contingency table, how to decide the null hypothesis? In an investigation into the effectiveness of car seat belts, 292...
When to know whether the given data is paired data or independent data? For example in these two questions, how do we identify which between...
How to calculate P(t14 < -2.908)?
Ch 13 page 21 ..... Full Normal Model and inference.... We assume ei follows normal distribution with mean 0 and Variance sigma square. This will...
Query : Why did value t4 at 5% is negative ? This is left tailed test and this should be positive. Or evertime when we see values of normal and t...
Page 9 Basic test - single sample For unknown Sigma There is t test statistic given But it is also mentioned that for large sample N(0,1) can be...
Hi John, You replied to Howard in 28th June thread explaining this inequality and invert. Further we all are interested to understand in which...
Hi, In exam for random number simulation of binomial and Poisson distribution. Is it appropriate to write directly seeing by table?? Do we have...
Hi Team, In Ch 10 questions 10.2 & 10.3 while calculating 2nd order moments, Two different methods are used for Variance. First is 1/n and second...
In question 7.5 Variable K has an exp(lemda). For a given value of K, random variable X has an Poisson (k) Part 1) expression of E(X/K) Can...
How to tackle Probability for Joint random variables - P(1<X+Y<2) For pdf f(x,y)= exp(-(x+y)) I did Google and found in some examples this limit...
In the solution of this question is given chi square with degree 40. And also mentioned from the tables of the chi square 40 distribution...
Poisson Process Derivation - PG 28 to 35 Is derivation of Poisson process required as per exam prospective or is it only given in book to...
