Given the correct test statistic you found in the previous problem you reject the null hypothesis that boys and

girls have the same average score on Hebrew tests using a .05 level of significance.

 True

 False

1.5 points   QUESTION 16

1. Hypothesis testing and specifically hypothesis testing for the difference in two means can be useful when investigating whether two populations are being treated equally or performing equally and such questions do arise in business (comparing two production processes), public policy (comparing outcomes of social programs) and legal settings (such as in discrimination cases). True False

1.5 points   QUESTION 17

1. For a given standard error, the larger the difference between two point estimates the greater the p-value for a test of the equality of means.  (Hint, try it with two sets of numbers and the same standard error and see which one has the larger p-value then look at it to see if that was a coincidence or if that will always be the case). True False

1.5 points   QUESTION 18

1. 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?tzFChi square

1 points   QUESTION 19

1. 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?tzFChi square

1 points   QUESTION 20

1. 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?tzFChi square

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