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• Question in STAT7008

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.

• Question in STAT7008

No description given

• Question in STAT7008

Given a random variable $X$  normally distributed as $\operatorname{N}(m,\sigma^2)$ find probabilities $P(X \gt a),\; a \gt m;\;\;P(X \lt b),\;b \lt m$.

• Question 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

Add, subtract, multiply and divide algebraic fractions.

• Question

Add, subtract, multiply and divide algebraic fractions.

• Question in STAT7008

Given a random variable $X$  normally distributed as $\operatorname{N}(m,\sigma^2)$ find probabilities $P(X \gt a),\; a \gt m;\;\;P(X \lt b),\;b \lt m$.

• Question in STAT7008

Given a random variable $X$  normally distributed as $\operatorname{N}(m,\sigma^2)$ find probabilities $P(X \gt a),\; a \gt m;\;\;P(X \lt b),\;b \lt m$.

• Question

Factorise three quadratic equations of the form $x^2+bx+c$.

The first has two negative roots, the second has one negative and one positive, and the third is the difference of two squares.

• Question in STAT7008

rebelmaths

Printing errors in the work produced by a particular film occur randomly at an average rate of p per page.

i.What is the probability that a one page document will contain x1 printing error(s)?

ii.If a n page document is printed, calculate the probability of having more than x2 errors. Assume a Poisson distribution.

• Question

Linear combinations of $2 \times 2$ matrices. Three examples.

• Question

Add, subtract, multiply and divide algebraic fractions.

• Exam (12 questions) in MATH7025

Differentiation of  polynomials, cos, sin, exp, log functions. Product, quotient and chain rules.

rebelmaths

• Question in MATH6059

Given a random variable $X$  normally distributed as $\operatorname{N}(m,\sigma^2)$ find probabilities $P(X \gt a),\; a \gt m;\;\;P(X \lt b),\;b \lt m$.

• Question

Decimal Places and Significant Figures

rebelmaths

• Question in MATH6059

Finding the confidence interval at either 90%, 95% or 99% for the mean given the mean and standard deviation of a sample. The population variance is not given and so the t test has to be used. Various scenarios are included.

• Question in STAT7008

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.

• Question in STAT7008

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 MATH6059

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 STAT7008

Compute a 95% confidence interval for the population mean given a small sample, and compare it with a confidence interval for a different population.

• Question in MATH6059

Compute a 95% confidence interval for the population mean given a small sample, and compare it with a confidence interval for a different population.

• Question in STAT7008

Compute a 95% confidence interval for the population mean given a small sample, and compare it with a confidence interval for a different population.

• Question in MATH6059

Calculate confidence interval for the mean, sample variance n>30

• Question in MATH6059

Calculate confidence interval for the mean, sample variance n>30

• Question in STAT7008

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 STAT7008

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 STAT7008

Two ordered data sets, each with 10 numbers. Find the sample standard deviation for each and for their sum.

• Question in MATH6059

Calculate confidence interval for the mean, sample variance n>30