94 results for "perform".
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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
Given a 3x3 matrix with very big elements, perform row operations to find a matrix with single-digit elements. Then reduce that to an upper triangular matrix, and hence find the determinant.
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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
Given a 3x3 matrix with very big elements, perform row operations to find a matrix with single-digit elements. Then reduce that to an upper triangular matrix, and hence find the determinant.
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Exam (2 questions) in Content created by Newcastle University
Solve a linear programming problem, and perform sensitivity analysis.
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Question in Content created by Newcastle University
An experiment is performed twice, each with $5$ outcomes
$x_i,\;y_i,\;i=1,\dots 5$ . Find mean and s.d. of their differences $y_i-x_i,\;i=1,\dots 5$.
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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 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
Provided with information on a sample with sample mean and known population variance, use the z test to either accept or reject a given null hypothesis.
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Exam (3 questions) in Transition to university
Identify the plane transformation performed to create a given diagram.
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Question in Statistics
Given some random finite subsets of the natural numbers, perform set operations $\cap,\;\cup$ and complement.
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Question in Statistics
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 Statistics
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 Statistics
An experiment is performed twice, each with $5$ outcomes
$x_i,\;y_i,\;i=1,\dots 5$ . Find mean and s.d. of their differences $y_i-x_i,\;i=1,\dots 5$.
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Question in Useful
Uses the $\chi^2$ test to see if there is any significant difference in preferences.
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Question in John's workspace
Calculations in $\mathbb{Z_n}$ for three values of $n$.
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Question in Christian's workspace
The student must perform an indefinite integration, and include a constant of integration.
A custom marking algorithm identifies the name of the student's constant of integration, and replaces it with 'c' before comparing with the expected answer.
If the student enters something like '2c' instead of 'c', it'll be marked wrong, which is an error in the marking.
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Question in Stats
The human resources department of a large finance company is attempting to determine if an employee’s performance is influenced by their undergraduate degree subject. Personnel ratings are used to judge performance and the task is to use expected frequencies and the chi-squared statistic to test the null hypothesis that there is no association.
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Question in Simon's workspace
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 Stats
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 Stats
Provided with information on a sample with sample mean and known population variance, use the z test to either accept or reject a given null hypothesis.
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Question in Mario's workspace
An experiment is performed twice, each with $5$ outcomes
$x_i,\;y_i,\;i=1,\dots 5$ . Find mean and s.d. of their differences $y_i-x_i,\;i=1,\dots 5$.
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Question in Mario's workspace
An experiment is performed twice, each with $5$ outcomes
$x_i,\;y_i,\;i=1,\dots 5$ . Find mean and s.d. of their differences $y_i-x_i,\;i=1,\dots 5$.
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Question in Newcastle University Sports Science
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 Stats
Provided with information on a sample with sample mean and known population variance, use the z test to either accept or reject a given null hypothesis.
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Question in Stats
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 Charlie's workspace
Paired t-test to see if there is a difference between times taken to complete a task.
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Question in Evan Kurnia'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 Harry's workspace
Provided with information on a sample with sample mean and known population variance, use the z test to either accept or reject a given null hypothesis.
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Question in Harry's workspace
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.