An important application of the chi-square distribution is _____.

An important application of the chi-square distribution is _____.

Answer:


testing for equality of three or more population proportions

testing for the independence of two variables

testing for goodness of fit

In hypothesis testing, the critical value is _____.

In hypothesis testing, the critical value is _____.

Answer: a number that establishes the boundary of the rejection region

The error of rejecting a true null hypothesis is _____.

The error of rejecting a true null hypothesis is _____.

Answer: Type I error

The confidence associated with an interval estimate is called the _____.

The confidence associated with an interval estimate is called the _____.

Answer: confidence level

Whenever the population has a normal probability distribution, the sampling distribution of is a normal probability distribution for _____.

Whenever the population has a normal probability distribution, the sampling distribution of is a normal probability distribution for _____.

Answer: Any sample size

Each customer entering a department store will either buy or not buy some merchandise. An experiment consists of following three customers and determining whether or not they purchase any merchandise. The number of sample points in this experiment is _____.

Each customer entering a department store will either buy or not buy some merchandise. An experiment consists of following three customers and determining whether or not they purchase any merchandise. The number of sample points in this experiment is _____.

Answer: 8