T test statistic for paired t test
=-0.551
P value is = 0.2912 .................by using Excel command =TDIST(ABS(-0.551),157,1)
You wish to test the following claim (H) at a significance level of a = 0.01....
You wish to test the following claim (H) at a significance level of a = 0.05. For the context of this problem, d= 22 - 21 where the first data set represents a pre-test and the second data set represents a post-test. H:Hd = 0 H:Hd < 0 – 11.9 You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain pre-test and post-test samples for n= 85 subjects. The average...
You wish to test the following claim (H) at a significance level of a = 0.005. For the context of this problem, d = 22 - 21 where the first data set represents a pre-test and the second data set represents a post-test. H:Hd = 0 H:Hd = 0 – 28 You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain pre-test and post-test samples for n = 21 subjects....
You wish to test the following claim (HQ) at a significance level of a = 0.001. For the context of this problem, d = 22 - 21 where the first data set represents a pre-test and the second data set represents a post-test. H:Hd = 0 H:Hd 70 You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain pre-test and post-test samples for n = 239 subjects. The average difference...
You wish to test the following claim (H) at a significance level of a = 0.001. For the context of this problem, Hd = H2 – My where the first data set represents a pre-test and the second data set represents a post-test. H:Hd = 0 H:Hd > 0 You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain pre-test and post-test samples for n = 15 subjects. The average...
You wish to test the following claim (HQ) at a significance level of a = 0.002. For the context of this problem, d = 22 - 21 where the first data set represents a pre-test and the second data set represents a post-test. H:Hd = 0 H:Hd > 0 You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain pre-test and post-test samples for n = 12 subjects. The average...
You wish to test the following claim (HaHa) at a significance level of α=0.01α=0.01. For the context of this problem, μd=μ2−μ1μd=μ2-μ1 where the first data set represents a pre-test and the second data set represents a post-test. Ho:μd=0 Ha:μd<0 You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain pre-test and post-test samples for n=48n=48 subjects. The average difference (post - pre) is ¯d=−20.2d¯=-20.2 with a standard deviation of the...
You wish to test the following claim (H) at a significance level of a = 0.01. For the context of this problem, Ha = 42 – Mi where the first data set represents a pre-test and the second data set represents a post-test. H:Md = 0 HQ:Hd < 0 You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain pre-test and post-test samples for n = 5 subjects. The average...
You wish to test the following claim (HQ) at a significance level of a = 0.02. For the context of this problem, id = 12 - 11 where the first data set represents a pre-test and the second data set represents a post-test. H:Hd = 0 Ha Hd 70 You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain pre-test and post-test samples for n 13 subjects. The average difference...
You wish to test the following claim (HaHa) at a significance level of α=0.01α=0.01. For the context of this problem, μd=μ2−μ1μd=μ2-μ1 where the first data set represents a pre-test and the second data set represents a post-test. Ho:μd=0Ho:μd=0 Ha:μd≠0Ha:μd≠0 You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain pre-test and post-test samples for n=19n=19 subjects. The average difference (post - pre) is ¯d=−9.5d¯=-9.5 with a standard deviation of the...
You wish to test the following claim (HaHa) at a significance level of α=0.002α=0.002. For the context of this problem, μd=μ2−μ1μd=μ2-μ1 where the first data set represents a pre-test and the second data set represents a post-test. Ho:μd=0Ho:μd=0 Ha:μd≠0Ha:μd≠0 You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain pre-test and post-test samples for n=13n=13 subjects. The average difference (post - pre) is ¯d=5d¯=5 with a standard deviation of the...