Question

12 0 89 10 11 12 13 14 15 16 QUESTION 2 Increasing the sample size a. Increases the power of the statistical test Ob. increases the degrees of freedom OC. changes the critical t value to determine significance O d. all of the above QUESTION 3 It is impossible to find a large effect size if your t-test results are not significant. True False QUESTION 4 P = .032 means there is a 3.2% chance the mean differences are due to error True False QUESTION 5 If you need to know the population standard deviation in order to complete a Z test True False

Answer 1

Anns 2 ) here option d is true because if we increase the sample size then the power of the test, degree of freedom increase and critical value from table also changes.

Ans 3) false because of the results from t test are not significant then effect size comes large.

Ans 4) it is false because p is the population proportion which occurs toward the favor of some situation.

Ans 5) yes this is true because we use z test if population standard deviation is known