By increasing the sample size, what change will be observed in statistical power?1 pointThe power will decrease.A change in power cannot be predicted from sample size.The power will not change.The power will increase.

What happens to the power of a test as the sample size increases?a.The power decreasesb.The power increasesc.The power remains the samed.The power becomes undefinedClear my choice

Recall that the power of a test is the probability that we reject H_0 when H_0 is false. Which of the following are true? Select one or more answers.Group of answer choicesIf sample size increases then power increases.If H_0 is very likely to be true then the power is higher when compared to when H_0 is very likely to be false.If α increases then power increases.If the effect size increases then power increases.

Increase in __________ helps increasing statistical power.standard deviationsample sizesignificance levelnone of the above

.Question 18From many prior studies, a researcher expects an effect size of d = .57 for a new study, but a new colleague has suggested that an effect size of d = .42 is more reasonable given the change in the research design. If the effect size does decrease, then how would the expected power of the study change?1 pointPower would decrease.Type I errors would increase.Power would increase.β would decrease.

Increasing which of the following can improve the power of a study?Question 4Answera.The confidence level.b.The sample size.c.The significance level (alpha).d.The standard error of the mean.