John wants to know if there is a significant difference in t

John wants to know if there is a significant difference in the average cost of three-bedroom homes in general for Indianapolis and for Lafayette. It randomly chooses 10 homes on the market in Indianapolis and 10 homes on the market in Lafayette. The SPSS output below shows the results (with the P-values intentionally blackened out). Use this output and a significance level of 0.05 to answer Question #13-14.

Solution

15. D) The critical value of t at alpha = 0.05 ( Two-tail test ) and 18 degree of freedom = -2.101.

Hence we donot reject Ho.

16. B)