58 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 Julie's workspace
Calculate the Pearson correlation coefficient on paired data and comment on the significance.
rebelmaths
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Question in Skills Audits for Maths and Stats
Decide whether each of the described sets of data is drawn from a discrete or continuous distribution.
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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 Julie's workspace
Find a regression equation given 12 months data on temperature and sales of a drink. Includes an interactive diagram for experimenting with fitting a regression line.
rebelmaths
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Question in Transition to university
An applied example of the use of two points on a graph to develop a straight line function, then use the t estimate and predict. MCQ's are also used to develop student understanding of the uses of gradient and intercepts as well as the limitations of prediction.
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Question in Bill's workspace
The data is fitted by linear and quadratic regression. First, find a linear regression equation for the n data points, 20≤n≤35.
They then are shown that the quadratic regression is often a better fit as measured by SSE. Also users can experiment with fitting polynomials of higher degree.
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Question in TEAME's workspace
Find a regression equation given 12 months data on temperature and sales of a drink. Includes an interactive diagram for experimenting with fitting a regression line.
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Question in Bill's workspace
Find a regression equation.
Now includes a graph of the regression line and another interactive graph gives users the opportunity to move the regression line around. Could be used for allowing users to experiment with what they think the line should be and see how this compares with the calculated line.
Also includes an updated SSE to see how the sum of the squares of the residuals varies with the regression line.
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Question in Bill's workspace
Find a regression equation given 12 months data on temperature and sales of a drink. Includes an interactive diagram for experimenting with fitting a regression line.
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Question in Demos
Find a regression equation.
Now includes a graph of the regression line and another interactive graph gives users the opportunity to move the regression line around. Could be used for allowing users to experiment with what they think the line should be and see how this compares with the calculated line.
Also includes an updated SSE to see how the sum of the squares of the residuals varies with the regression line.
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Question in Transition to university
Fill in a frequency table for grouped data, then estimate the mean and identify the modal class.
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Question in Bill's workspace
Given sample data find mean, standard deviation, median, interquartile range.
Note that there are different versions of the upper and lower quartiles, so you may want to include your own versions - see the user defined functions in the question.
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Question in Bill's workspace
Find a regression equation.
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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 Bill's workspace
Calculate the Pearson correlation coefficient on paired data and comment on the significance.
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Question in Bill's workspace
Calculate the Pearson correlation coefficient on paired data and comment on the significance.
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Question in Bill's workspace
Spearman rank correlation calculated. 10 paired observations.
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Question in Bill's workspace
Spearman rank correlation calculated. 8 paired observations.
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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
One-way ANOVA example
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Question in Content created by Newcastle University
Find a regression equation given 12 months data on temperature and sales of a drink.
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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
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
Find a regression equation.
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Question in Content created by Newcastle University
Find a regression equation.
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Question in Content created by Newcastle University
Given sample data find mean, standard deviation, median, interquartile range,
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Question in Content created by Newcastle University
One-way ANOVA example