Question

You wish to test the following claim (Ha) at a significance level of

α=0.01.       Ho:μ1=μ2
Ha:μ1≠μ2 You obtain the following two samples of data.

A.__________Test statistic three decimal places

B.__________ P value four decimal places.

C.__________Accept or reject the null

Sample 1

		101.8 54.7 76.6 106.8 91.5 83.8 84.1 96.4 80.7 83.2 94.4 89.6 71.2 81.9 87.3 89.6 93.1 60.2 91.1 103.9 85.4 82.3 90 74.3 98.7 100.9 96.4 74.7 95.8 98.1 67.6 81.3 72.6 96.9 68.9 92.3 90.4 70.1 102.8 82.6 79.7 73.9 78.7 83.8 100.1 63.1 61.8 103.9 83.5 85.1 72.6 88.3 86.6 93.1 82.9 63.1 80.7 65.2 77.4 98.7 77.7 64.2 76.6

Sample 2

87.8	63.9	69.3	70.5
68	54.7	117.8	129.8
66.7	90.6	57	59.8
64.6	115.6	103	68.7
82.4	57	91.7	67.4
71.1	100.4	58.9	65.3
91.1	89.4	67.4	76.1
110.6	42.3	60.7	66.7
54.7	79.8	75	74.5
103.9	109.3	87.2	106.9
66.7	77.7	61.6	110.6
62.4

Answer 1

Null and alternative hypothesis Ho: ul=u2 Ha: ul#u2 A) Test statisticis, X1-12 83.8841-79.0356 = 1.411 2 155.0301 420.6919 si s 1+2 V 63 nin2 45 B) P value = 2*P(21.411) =2* {P(0<<< .0)-P(0<7<1.411)} = 2*{0.5-0.4207} P value=0.1586 C) Accept the null