Question

Jessika, Jenna and Lauren conducted a "tea test" comparing expensive loose leaf tea to some cheap dollar store tea. Ten people scored the loose leaf tea: 6, 1, 6, 4, 1, 6, 8, 5, 3, 7. Those same 10 people scored the cheap tea: 8, 8, 4, 6, 4, 8, 4, 3, 7, 3. Conduct a t-test to determine whether there is a statistically significant difference between the two teas. Use the .05 significance level. What is the left-tail critical value for this two-tailed test? (Answer with only three decimal places, like this: 5.555)

Jessika, Jenna and Lauren conducted a "tea test" comparing expensive loose leaf tea to some cheap dollar store tea. Ten people scored the loose leaf tea: 6, 1, 6, 4, 1, 6, 8, 5, 3, 7. Those same 10 people scored the cheap tea: 8, 8, 4, 6, 4, 8, 4, 3, 7, 3. Conduct a t-test to determine whether there is a statistically significant difference between the two teas. Use the .05 significance level. What is the right-tail critical value for this two-tailed test? (Answer with only three decimal places, like this: 5.555) ____

Answer 1

Answer:

Given,

Significance Level = 0.05

Degrees of Freedom = (10-1) + (10-1) = 18

Therefore,

the left-tail critical value for this two-tailed test : -2.101

the right-tail critical value for this two-tailed test : 2.101