Conduct a one-sample t-test for a dataset where = 14.1, X = 13.7, s x =

Conduct a one-sample t-test for a dataset where μ = 14.1, X = 13.7, s_x = 0.8, n = 20.

a. What are the groups for this one-sample t-test?

b. What is the null hypothesis for this one-sample t-test?

c. What is the value of α?

d. Should the researcher conduct a one- or a two-tailed test?

e. What is the alternative hypothesis?

f. What is the value for degrees of freedom?

g. What is the t-observed value?

h. What is(are) the t-critical value(s)?

i. In view of the critical and observed values, should the researcher reject or retain the null hypothesis?

j. What is the p-value for this example?

k. What is the Cohen’s d value for this example?
l. If the α value were dropped to .01, would the researcher reject or retain the null hypothesis?

m. Calculate a 68% CI around the sample mean.

n. Calculate a 90% CI around the sample mean.

o. Calculate a 98% CI around the sample mean.