Q1 What happens to the sample mean and standard error as N increases? Q2 What are...

Q1 What happens to the sample mean and standard error as N increases?

Q2 What are the three different t-tests and describe what is different between them

a. What are the assumptions for each test?

Q3 How is the z-score distinct from the t-statistic?

Q4 I want to know if students in my Math class of 27 students are doing as well as another Math class taught by a different teacher, their class has 23 students. What t-test should I use to determine if there is a statistical significant difference between the two classes?

My class has a mean of 87 while the other class has 92. The standard error of the difference is .55

State the null and alternate hypothesis
Determine the tstatistic and df
Using the ttable, what is the critical region?
Is there a statistical significant difference?
What is the effect size?

Q5 What are 3 key differences between a one-tailed hypothesis versus a two-tailed hypothesis?

Q6 What is a Type 1 error?

Q7 What is a Type 2 error?

Q8 Name one way to increase power and one way to decrease power

Expert Solution

orchestra answered 1 year ago

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