Question

March 17 - April 1	-0.17
March 18 - April 2	-0.29
March 19 - April 4	-0.29
March 20 - April 5	-0.71
March 22 - April 6	-0.58
March 24 - April 10	-1.64
March 25 - April 12	-1.88
March 27 - April 13	-1.88
March 28 - April 15	-2.5
March 30 - April 16	-2.78
Mean =	-1.238
Standard Deviation =	1.024

Do the following.

D) For each country test at 5% level if the mean for March is different from the mean for April using 10 paired samples

Answer 1

H0: There is no significance difference between the means of march month and april month

H1: There is significance difference between the means of march month and april month

Let the los be alpha = 5%

Critical t: ±2.2622 at 5% los and df = 10-1 = 9

P-Value: 0.0041

since t value is not in t critical values and P-value < alpha 0.05 so we reject H0

Thus we conclude that there is significance difference between the means of march month and april month