Quadratic Graphs What are quadratic graphs? Using quadratic graphs You need to be able to: sketch?a quadratic graph given an equation or information about the graph determine, from the equation, th...
Expanding Quadratics You should be familiar with all aspects of basic algebra including manipulating expressions; simplifying; expanding and factorising brackets with both linear and quadratics.? I...
Normal Hypothesis Testing What steps should I follow when carrying out a hypothesis test for the mean of a normal distribution? Following these steps will help when carrying out a hypothesis test f...
Poisson Hypothesis Testing How is a hypothesis test carried out for the mean of a Poisson distribution? The?population parameter?being tested will be the?mean, λ ,?in a?Poisson distribution As it i...
Binomial Hypothesis Testing How is a hypothesis test carried out with the binomial distribution? The?population parameter?being tested will be the?probability,?p??in a?binomial distribution?B(n , p...
Type I & Type II Errors Any hypothesis test will only provide evidence about whether a parameter has changed or not. A conclusion can not claim with certainty whether to accept or reject the nu...
Language of Hypothesis Testing What is a hypothesis test? A hypothesis test uses a?sample of data?in an experiment to test a?statement?made about the value of a?population parameter A hypothesis te...
Normal Approximation of Poisson When can I use a normal distribution to approximate a Poisson distribution? The greater the value of?λ?in a Poisson distribution, the more symmetrical the distributi...
Choosing Distributions When should I use a Poisson distribution? A random variable that follows a?Poisson distribution?is a?discrete random variable A Poisson distribution is used when the random v...
