What is statistical power

Reference no: EM13108335

1. What is statistical power?

2. How does a researcher decide whether to use a one-tailed or two-tailed test?

3. What are the advantages and disadvantages of using a two-tailed test?

Reference no: EM13108335

Questions Cloud

What topic have you found at the markkula center : What topic or topics of interest have you found at the Markkula Center and can you apply one, two or all three moral theories to the cases?

Null and alternative hypotheses and type ii error : What are the null and alternative hypothesis for this? What is a type II error in context of this test? Suppose that the researcher deceides not to reject the null hypothesis what sort of error might he be making?

Calculating labor productivity : A company that makes shopping carts for supermarkets and other stores recently purchased some new equipment that reduces the labor content of the jobs needed to produce the shopping carts.

Create and interpret confidenceinterval-mean of population : Random sample from population of male runners in town or city. Create and interpret the 95% confidence interval for mean, mean of the population from which sample is drawn.

What is statistical power : What is statistical power? How does a researcher decide whether to use a one-tailed or two-tailed test? What are the advantages and disadvantages of using a two-tailed test?

Calculate the bias and mean absolute deviation : Given the series of demand data alculate the forecasts for periods 7 through 11 using moving average models with n = 2, n = 4, and n = 6 and Calculate the bias and MAD for each set of forecasts.

Information about type i error and type ii error : A researcher collects data on children's weights from a random sample of children in the South and concludes that children in the South weigh less than the national average.

What is probability that a random person will have a z-score : What is the probability that a random person will have a z-score.

Impact on type error probability : For each of the following situations, indicate what the general impact on the Type II error probability will be:

User Account

All Pages