Question

# March 17 - April 1 -0.17   March 18 - April 2 -0.29 March 19 - April...

 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

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

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