225 results for "sample".
-
Question in STAT7008
No description given
-
Question in Standard Maths
Students are given a line equation in the form y=mx+b and asked to graph it.
m and b are randomised.
The question is not auto-marked, students need to "reveal answers" to see a sample graph that they can compare to their own.
-
Question in Adelle's workspace
This question provides a list of data to the student. They are asked to find the mean, median, mode and range.
-
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.
-
Question in Bill's workspace
Paired t-test to see if there is a difference between times take in a task.
-
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.
-
Question in Shihan's workspace
No description given
-
Question in Shihan's workspace
No description given
-
Question in Brad's workspace
No description given
-
Exam (3 questions) in Shihan's workspace
No description given
-
Question in Shihan's workspace
No description given
-
Question in Shihan's workspace
No description given
-
Question in Shihan's workspace
No description given
-
Question in STAT7008
Provided with information on a sample with sample mean and known population variance, use the z test to either or reject a given null hypothesis. One sided.
-
Question in MATH6059
Provided with information on a sample (>30) with sample mean and standard deviation, use the z test to either accept or reject a given null hypothesis.
-
Find a confidence interval given the mean of a sample, population variance known adaptive marking DraftQuestion in MATH6059
Finding the confidence interval at either 90%, 95% or 99% for the mean given the mean of a sample. The population variance is given and so the z values are used. Various scenarios are included.
-
Question in Newcastle University Sports Science
Sample of size $24$ is given in a table. Find sample mean, sample standard deviation, sample median and the interquartile range.
-
Exam (2 questions) in Content created by Newcastle University
Statistics and probability. 2 questions, 1 on two sample t-test and 1 on paired t-test.
-
Question in Content created by Newcastle University
Cartesian form of the parametric representation of a surface, normal vector, and magnitude.
Accuracy for part c) should be made more stringent as can be marked correct for an incorrect answer. Use a different sample range rather than 0 to 1 would help as would setting accuracy to something less than 0.001.
-
Question in Content created by Newcastle University
Given mean and sd of 1000 sample returns on a scale of 1 to 7 together with a given score, find the z-score.
Also find the 95% confidence interval for the population mean.
-
Question in Content created by Newcastle University
Given data on population mean and population standard deviation and three sampling sizes, calculate the probabilities that the sample means are within a specified distance from the population mean.
-
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 $\mu$. Unbiased, efficient?
-
Question in Content created by Newcastle University
For a sample of size n from a normal distribution and given the mean of the sample and the standard deviation of the distribution, find the MLE for the mean. Also the expected information and a confidence interval for the mean.
-
Question in Content created by Newcastle University
Paired t-test to see if there is a difference between times take in a task.
-
Question in Content created by Newcastle University
Arrivals given by exponential distribution, parameter $\theta$ and $Y$, sample mean on inter-arrival times. Find and calculate unbiased estimator for $\theta$.
-
Question in Content created by Newcastle University
Given sum of sample from a Normal distribution with unknown mean $\mu$ and known variance $\sigma^2$. Find MLE of $\mu$ and one of four functions of $\mu$.
-
Question in Content created by Newcastle University
For a sample of size n from a normal distribution, given mean of the sample mean and the standard deviation , find the t-statistic corresponding to a null hypothesis $\mu=m$ and a given confidence level. Check if the result is significant at this level.
-
Question in Content created by Newcastle University
For a sample of size n from an Exponential distribution $\operatorname{Exponential}(\lambda)$ and given the mean of the sample, find the MLE for $\lambda$. Also find the expected information and a confidence interval for $\lambda$.
-
Question in Content created by Newcastle University
For a sample of size n from a Poisson distribution $\operatorname{Poisson}(\lambda)$ and given the mean of the sample, find the MLE for $\lambda$. Also find the expected information and a confidence interval for $\lambda$.
-
Question in Content created by Newcastle University
Given sample data find mean, standard deviation, median, interquartile range,