7. Suppose we are testing Ho : ?-112-21 against Ha : ??-?2 21, where ?? and ?2 a

Question

7. Suppose we are testing Ho : ?-112-21 against Ha : ??-?2 21, where ?? and ?2 are respective means of two normally distributed populations. After taking a sample from each population, we have computed the observed test statistic Wob 2.3 and the corresponding p-value-P(IWI > IW obel l Ho is true)-0.011. Circle one correct conclusion that can be made using the above information (a) We accept Ha : ?,-1.9 with confidence (c) We reject Ho : ?1-42-2.1 with confi- level ? = 0.05. dence level ?-0.01. (b) We reject Ho : ??-?2-2.1 with confi- (d) We accept Ho : ??-?2-2.1 with confi- dence level ? 0.05. dence level a0.05.

Explanation / Answer

here as p value is greater than 0.01 level and less than 0.05 level ; we can reject at 0.05 and not reject at 0.01 level

option B is correct

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