Two samples of 6 and 5 items, respectively, gave the following data : Mean of tne first sample 40 Standard deviation of the first sample 8 Mean of the second sample 50 Standard deviation of the second sample Is the difference of mean significant ? The value of t for 9 degrees of freedom at 5% level is 2.26. 10

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Two samples of 6 and 5 items, respectively, gave the following data :
Mean of tne first sample
40
Standard deviation of the first sample
8
Mean of the second sample
50
Standard deviation of the second sample
10
Is the difference of mean significant ? The value of t for 9 degrees of freedom at 5% level is 2.26.
Transcribed Image Text:Two samples of 6 and 5 items, respectively, gave the following data : Mean of tne first sample 40 Standard deviation of the first sample 8 Mean of the second sample 50 Standard deviation of the second sample 10 Is the difference of mean significant ? The value of t for 9 degrees of freedom at 5% level is 2.26.
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