The means of two random samples of size 9 and 7 are 196-42 and 198.82 respectively. The sum of the squares of the deviations from the mean are 26.94 and 1873 respectively. Can the samples be considered to have been drawn from the same normal population ?

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Q: From the following infórmation, ble : Σχ= 235, Σy= 250 2 Ey = 6840 6750

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Q: Evaluate A? sin (x + h) E sin (x + h) sin (x + h) + where interval of differencing is h.

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