1.The test statistic for a hypothesis test concerning the equality of two means when

| August 30, 2017

uestion
The test statistic for a hypothesis test concerning the equality of two means when the standard deviations are known and the samples are independent with more than 30 observations each follows which distribution?

a. t

b.f

c. z

d. chi square

The test statistic for a hypothesis test concerning the equality of two means when the population standard deviations are not known and the samples are independent with more than 30 observations each follows which distribution?

a. t

b.f

c. z

d. chi square

The test statistic for a hypothesis test concerning the equality of two means when the population standard deviations are not known and the samples are matched (or paired) follows which distribution?

a. t

b.f

c. z

d. chi square

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