Angelica collected data on people’s anxiety levels (x) and life satisfaction (y). The scores are below:

a. Calculate the correlation for Angelica’s data.

b. What is the null hypothesis for these data?

c. What is the degrees of freedom value for these data?

d. If Angelica conducts a two-tailed test, what should the critical values for an NHST be?

e. Should she reject or retain the null hypothesis?

f. Is the p-value (a) greater than .05, (b) between .01 and .05, or (c) less than .01?

g. What is the r² value?

h. Draw a scatterplot that represents these data.

Transcribed Image Text:

ID y 1 4 5 6. 3 7 3 4 10 5 1 6. 6. 2 8 7 1 8 4 9. 9. 10 8 6. 11 7 5 12 1 9.