Confidence Interval for μ What is a confidence interval? It is?impossible?to find the?exact value?of a population parameter when taking a sample The best we can do is find an?interval?for which the...
Sample Mean Distribution What is the distribution of the sample means? For any given population it can often be difficult or impractical to find the true value of the?population mean,?μ The populat...
Unbiased Estimates What is an unbiased estimator of a population parameter? An?estimator?is a?statistic?that is used to estimate a?population parameter When a sample is used with the estimator, the...
Sampling Techniques What is a population, a sample and the difference between them? The?population?refers to the?whole set?of things which you are interested in e.g. if a vet wanted to know how lon...
Normal Approximation of Binomial When can I use a normal distribution to approximate a binomial distribution? Why do we use approximations? If there are a large number of values for a binomial dist...
Modelling with Distributions When should I use a binomial distribution? A random variable that follows a?binomial distribution?is a?discrete random variable A binomial distribution is used when the...
Finding Sigma and Mu How do I find the mean (μ) or the standard deviation (σ) if one of them is unknown? STEP 4:?Solve?the equation How do I find the mean (μ) and the standard deviation (σ) if both...
Normal Distribution - Calculations Calculating Normal Probabilities How do I find probabilities using a normal distribution? It is likely that your calculator has a function that can find normal pr...
Standard Normal Distribution What is the standard normal distribution? ?The?standard normal distribution?is a normal distribution where the?mean is 0?and the?standard deviation is 1 It is denoted b...
