48 results.
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Question in Bill's workspace
Paired t-test to see if there is a difference between times take in a task.
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Question in Demos
Two sample t-test to see if there is a difference between scores on questions between two groups when the questions are asked in a different order.
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Question in Content created by Newcastle University
Two sample t-test to see if there is a difference between scores on questions between two groups when the questions are asked in a different order.
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Question in Christian's workspace
An experiment is performed twice, each with 5 outcomes
xi,yi,i=1,…5 . Find mean and s.d. of their differences yi−xi,i=1,…5.
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Question in Content created by Newcastle University
A weighted coin with given P(H),P(T) is tossed 3 times. Let X be the random variable which denotes the longest string of consecutive heads that occur during these tosses. Find the Probability Mass Function (PMF), expectation and variance of X.
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Question in Jos's workspace
Template question. The student is asked to perform a two factor ANOVA to test the null hypotheses that the measurement does not depend on each of the factors, and that there is no interaction between the factors.
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Question in Bill's workspace
Exercise using a given uniform distribution X, calculating the expectation and variance. Also finding P(X≤a) for a given value a.
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Question in Bill's workspace
Question on the exponential distribution involving a time intervals and arrivals application, finding expectation and variance. Also finding the probability that a time interval between arrivals is less than a given period. All parameters and times randomised.
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Question in Bill's workspace
Two sample t-test to see if there is a difference between scores on questions between two groups when the questions are asked in a different order.
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Question in Julie's workspace
X∼Binomial(n,p). Find P(X=a), P(X≤b), E[X],Var(X).
rebelmaths
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Question in Content created by Newcastle University
One-way ANOVA example
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Question in Content created by Newcastle University
Two factor ANOVA example
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Question in Content created by Newcastle University
Using a random sample from a population with given mean and variance, find the expectation and variance of three estimators of μ. Unbiased, efficient?
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Question in Content created by Newcastle University
Given sum of sample from a Normal distribution with unknown mean μ and known variance σ2. Find MLE of μ and one of four functions of μ.
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Question in Content created by Newcastle University
LSD and Tukey yardsticks on three treatments. Also one-way Anova test on same set of data.
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Question in Content created by Newcastle University
Paired t-test to see if there is a difference between times take in a task.
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Question in Content created by Newcastle University
One-way ANOVA example
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Question in Content created by Newcastle University
Exercise using a given uniform distribution Y, calculating the expectation and variance as well as asking for the CDF. Also finding P(b<Y<c) for given values of b,c.
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Question in Content created by Newcastle University
Provided with information on a sample with sample mean and standard deviation, but no information on the population variance, use the t test to either accept or reject a given null hypothesis.
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Question in Content created by Newcastle University
Two ordered data sets, each with 10 numbers. Find the sample standard deviation for each and for their sum.
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Question in Content created by Newcastle University
Two ordered data sets, each with 10 numbers. Find the sample standard deviation for each and for their sum.
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Question in Content created by Newcastle University
Exercise using a given uniform distribution Y, calculating the expectation and variance as well as asking for the CDF. Also finding P(Y≤a) and P(b<Y<c) for a given values a,b,c.
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Question in Content created by Newcastle University
Given three linear combinations of four i.i.d. variables, find the expectation and variance of these estimators of the mean μ. Which are unbiased and efficient?
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Question in Content created by Newcastle University
Given the PDF for Y∼Exp(λ) find the CDF, P(a≤Y≤b) and E[Y],Var(Y)
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Question in Content created by Newcastle University
Y∼Poisson(p). Find P(Y=a), P(Y>b), E[Y],Var(Y).
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Question in Content created by Newcastle University
X∼Binomial(n,p). Find P(X=a), P(X≤b), E[X],Var(X).
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Question in Content created by Newcastle University
An experiment is performed twice, each with 5 outcomes
xi,yi,i=1,…5 . Find mean and s.d. of their differences yi−xi,i=1,…5.
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Question in Content created by Newcastle University
W∼Geometric(p). Find P(W=a), P(b≤W≤c), E[W], Var(W).
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Question in Content created by Newcastle University
Given two sets of data, sample mean and sample standard deviation, on performance on the same task, make a decision as to whether or not the mean times differ. Population variance not given, so the t test has to be used in conjunction with the pooled sample standard deviation.
Link to use of t tables and p-values in Show steps.
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Question in Julie's workspace
Template question. The student is asked to perform a two factor ANOVA to test the null hypotheses that the measurement does not depend on each of the factors, and that there is no interaction between the factors.