Question

Monthly rent paid by undergraduates and graduate students.

Undergraduate Student Rents (n = 10)
800	730	900	650	720
800	770	700	1,040	680

Graduate Student Rents (n = 12)
1,140	880	890	860	800	920
770	800	960	920	860	870

(a) Construct a 95 percent confidence interval for the difference of mean monthly rent paid by undergraduates and graduate students, using the assumption of unequal variances with Welch's formula for d.f. (Do not round the intermediate calculations. Round your final answers to 3 decimal places. Negative values should be indicated by a minus sign.)

The 95% confidence interval is from ____ to ____.

(b) What do you conclude?

• We can conclude there is a significant difference in means for undergraduate and graduate rent.

• We cannot conclude there is a significant difference in means for undergraduate and graduate rent.

Answer 1