Effect size for one sample t-test

Reference no: EM1316493

Several factors influence statistical power for a one sample t test. How does statistical power change (increase or decrease) for each of the following changes?

When d (effect size) increases.
When N (sample size) increases
When the alpha level is made smaller.

Explain your answer. For example, if we know ahead of time that the effect size d is very small, what does this tell us about the N we will need in order to have adequate statistical power? (We assume that all other terms included in the r ratio remain the same).

Reference no: EM1316493

Questions Cloud

Work out the probability of selecting a credit card : Key Refining decided to send a special financing plan to charge account customers having the highest 10 percent of the money charges. What is the dividing point between customers who receive the special plan and those who do not.

Homogeneity of variance assumption test : How do we decide if the homogeneity of variance assumption is significantly violated?

Computation of expected return based on capital asset : Computation of expected return based on capital asset pricing model and while Black Company stock has a beta of 1.0 and a required return of 12%

Determine the mean and standard deviation : A group of students collected data at the Cedar Point amusement park and reported that the "wait time" to ride the "Top Thrill Dragster" roller coaster is consistently distributed within a range of 40 minutes to 90 minutes.

Effect size for one sample t-test : Some of the factors affect statistical power for a one sample t test. How does statistical power change (increase or decrease) for each of the following changes?

Computation of expected return using capm approach : Computation of expected return using CAPM approach and Required rate of return-Assume that the risk-free rate is 6 percent

To find the probability of rolling pair of dice : Consider the experiment of rolling a pair of dice. Suppose that we are interested in the sum of the face values showing on the dice.

Find the question based on common stock : Theory question based on common stock, dividend yield and capital gain and Would the distribuition between the dividened yield and the capital gain yield be influenced by the firm's decision to pay more dividiends rather than to retain and reinvest..

Effect size for independent sample t-test : Compute the effect size with gender as the grouping variable and ADDSC as the dependent variable.

User Account

All Pages