Based on past experience, the probability that the sun will rise tomorrow is ________. (Points : 1) p = 0 p = .1 p = .5 p = 1.0 The standard error of the difference is a measure of pooled variance. (Points : 1) True False The z scores is a ratio of difference to variability (t). (Points : 1) True False How is the ztest different from zscore analysis? (Points : 1) The z-test compares a sample to a population. The z-test calculates a value of z which can be compared to Table A. The z-test provides a way to evaluate how individuals compare to a population. The z-test is based on how individual scores compare to a sample mean. What advantage does the onesample t offer over the ztest? (Points : 1) The one sample t requires no parameter standard error of the The one sample t requires no parameter mean. mean. The one sample t requires no sample mean. The one sample t doesn't require interval scale data. In a distribution for which the mean is 25 and the standard deviation is 5, what percentage of all scores occur at 30 or below? (Points : 1) 15.87% 20% 34.13% 84.13% Which is true of a onetailed test? (Points : 1) The alternate hypothesis specifies the The There The direction of difference. null hypothesis specifies the direction of difference. is no alternate hypothesis. null hypothesis becomes the research hypothesis. The distribution upon which the ztest is based has a mean of 1.0. (Points : 1) True False n a distribution for which the mean is 25 and the standard deviation is 5, what percentage of all scores occur between 20 and 30? (Points : 1) 34.13% 68.26% 84.13% 92.39% The ztest asks whether the population from which the sample was drawn has the same mean as the population to which it is compared. (Points : 1) True False