Questions 33 to 39 refer to a 2-sample t test. The results of the output are dis
ID: 2909589 • Letter: Q
Question
Questions 33 to 39 refer to a 2-sample t test. The results of the output are displayed in Figure3 2-SampTTest 2-SamPTTest tSx1 t--2.088436649 P. 02401073 df-23 X1-24 X2- XP 5.86440997 n2-10 Figure 3 33. For this test what is the standard distribution that models the sampling distribution a) glormal distribution b) sampling distribution of the mean c) the t distribution d) sampling distribution of the differences of between population means 34. Which value is the test statistic? a)-2.0884 b) 0.0240 e)-5 )5.8644 What is assumption underlying S a) the error for the test is small b) the population standard deviations are essentially equal c) sal and sa are different 35. the estimate of the population standard deviation 6 Calculate the difference between the sample means. b)-2.0884 ) 0.0240 )5.8664 36. Iculate the Standard Error for the sampling distribution. 2.3941 37 b) 5.8644 c) -2 d) 0.02401 38. What is the probability that the null hypothesis is incorectly rejected if the p-value is significant? a) 0.0240 00s c)0.01 d) not enough information is given. the results statistically significant at a) yes b) no c) not enough information in the output 39 -5%, then which conclusion would best indicate Ifthe results were statistically significant at that result? 40 a) Although the sample means are different the difference is not statistically significant at The mean ofpopulation one is less than the mean of population two at an a-5% Not enough information to determine statistical significance at c)Explanation / Answer
only answer of question (33) is not ture and remainging answers are true .
the following answers are given................
(33) c. t-tistribution
(34) a (35)b(36)a(37)a(38)b(39)a(40)b
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