week 1 review

Question 1

What is the data cycle?

Answer 1

problem, plan, data, analysis, conclusion

Question 2

What is the central limit theorem?

Answer 2

assume that the distribution of values follow the normal distribution pattern in the population.

Question 3

variance is expressed in?

Answer 3

squared units

Question 4

standard deviation is expressed in?

Answer 4

same units as the mean

Question 5

In SPSS output, what is the standard error of the mean?

Answer 5

standard deviation divided by the square root of N.

Question 6

The p-value (sig (2-tailed) SPSS) is significant if…

Answer 6

it is smaller than .05

Question 7

What is type 1 error?

Answer 7

false positive, rejecting the null hypothesis even if it is true.

Question 8

What is type 2 error?

Answer 8

a false negative, accepting the null hypothesis even if it is false.

Question 9

What does it mean when standard error of the mean becomes smaller?

Answer 9

It means the estimated sample mean is closer to the population mean